Combining Philosophers

All the ideas for Alfred Tarski, Peter Watson and Roger Scruton

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218 ideas

1. Philosophy / A. Wisdom / 3. Wisdom Deflated
Because of Darwin, wisdom as a definite attainable state has faded [Watson]
     Full Idea: As well as killing the need for God, Darwin's legacy transformed the idea of wisdom, as some definite attainable state, however far off.
     From: Peter Watson (Ideas [2005], Ch.31)
     A reaction: Where does this leave philosophy, if it is still (as I like to think) the love of wisdom? The best we can hope for is wisdom as a special sort of journey - touring, rather than arriving.
1. Philosophy / B. History of Ideas / 1. History of Ideas
The three key ideas are the soul, Europe, and the experiment [Watson]
     Full Idea: The three key ideas that I have settled on in the history of ideas are: the soul, Europe, and the experiment.
     From: Peter Watson (Ideas [2005], Intro)
     A reaction: The soul is a nice choice (rather than God). 'Europe' seems rather vast and indeterminate to count as a key idea.
The big idea: imitation, the soul, experiments, God, heliocentric universe, evolution? [Watson]
     Full Idea: Candidates for the most important idea in human history are: mimetic thinking (imitation), the soul, the experiment, the One True God, the heliocentric universe, and evolution.
     From: Peter Watson (Ideas [2005], Ch.03)
     A reaction: From this list I would choose the heliocentric universe, because it so dramatically downgraded the importance of our species (effectively we went from everything to nothing). We still haven't recovered from the shock.
1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / c. Philosophy as generalisation
Philosophy aims to provide a theory of everything [Scruton]
     Full Idea: Philosophy studies everything: it tries to provide a theory of the whole of things.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 1.2)
     A reaction: Good, but you can't avoid value-judgements about which things are important; philosophers place more value on moral theories than on theories about glacier movement. There is a tension in philosophy between human and eternal concerns.
1. Philosophy / D. Nature of Philosophy / 8. Humour
Amusement rests on superiority, or relief, or incongruity [Scruton]
     Full Idea: There are three common accounts of amusement: superiority theories (Hobbes's 'sudden glory'), 'relief from restraint' (Freud on jokes), and 'incongruity' theories (Schopenhauer).
     From: Roger Scruton (Laughter [1982], §5)
     A reaction: All three contain some truth. But one need not feel superior to laugh, and one may already be in a state of unrestraint. Schopenhauer seems closest to a good general account.
The central object of amusement is the human [Scruton]
     Full Idea: There are amusing buildings, but not amusing rocks and cliffs. If I were to propose a candidate for the formal object of amusement, then the human would be my choice, ...or at least emphasise its centrality.
     From: Roger Scruton (Laughter [1982], §9)
     A reaction: Sounds good. Animal behaviour only seems to amuse if it evokes something human. Plants would have to look a bit human to be funny.
Since only men laugh, it seems to be an attribute of reason [Scruton]
     Full Idea: Man is the only animal that laughs, so a starting point for all enquiries into laughter must be the hypothesis that it is an attribute of reason (though that gets us no further than our definition of reason).
     From: Roger Scruton (Laughter [1982], §1)
     A reaction: I would be inclined to say that both our capacity for reason and our capacity for laughter (and, indeed, our capacity for language) are a consequence of our evolved capacity for meta-thought.
Objects of amusement do not have to be real [Scruton]
     Full Idea: It is a matter of indifference whether the object of amusement be thought to be real.
     From: Roger Scruton (Laughter [1982], §7)
     A reaction: Sort of. If I say 'wouldn't it be funny if someone did x?', it is probably much less funny than if I say 'apparently he really did x'. The fantasy case has to be much funnier to evoke the laughter.
1. Philosophy / E. Nature of Metaphysics / 5. Metaphysics beyond Science
Some say metaphysics is a highly generalised empirical study of objects [Tarski]
     Full Idea: For some people metaphysics is a general theory of objects (ontology) - a discipline which is to be developed in a purely empirical way, and which differs from other empirical disciplines in its generality.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 19)
     A reaction: Tarski says some people despise it, but for him such metaphysics is 'not objectionable'. I subscribe to this view, but the empirical aspect is very remote, because it's too general for detail observation or experiment. Generality is the key to philosophy.
1. Philosophy / F. Analytic Philosophy / 1. Nature of Analysis
Disputes that fail to use precise scientific terminology are all meaningless [Tarski]
     Full Idea: Disputes like the vague one about 'the right conception of truth' occur in all domains where, instead of exact, scientific terminology, common language with its vagueness and ambiguity is used; and they are always meaningless, and therefore in vain.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 14)
     A reaction: Taski taught a large number of famous philosophers in California in the 1950s, and this approach has had a huge influence. Recently there has been a bit of a rebellion. E.g. Kit Fine doesn't think it can all be done in formal languages.
1. Philosophy / F. Analytic Philosophy / 3. Analysis of Preconditions
If p entails q, then p is sufficient for q, and q is necessary for p [Scruton]
     Full Idea: If p entails q, then p is sufficient for q, and q is necessary for p.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 15.7)
1. Philosophy / H. Continental Philosophy / 1. Continental Philosophy
Two marxist ideas have dominated in France: base and superstructure, and ideology [Scruton]
     Full Idea: Two tenets of classical Marxism have played a decisive role in French culture during our century: the theory of base and superstructure, and the concept of ideology.
     From: Roger Scruton (Upon Nothing: Swansea lecture [1993], p.7)
     A reaction: It is striking how marxist attitudes permeate even the least political of French philosophical writings, to the point where you wonder if they are even aware of it any more. They largely have marxism and reaction, with liberalism passing them by.
1. Philosophy / H. Continental Philosophy / 6. Deconstruction
On the surface of deconstructive writing, technicalities float and then drift away [Scruton]
     Full Idea: Deconstructive writing has a peculiar surface, in which technicalities float on the syntactic flood and vanish unexplained downstream.
     From: Roger Scruton (Upon Nothing: Swansea lecture [1993], p.2)
     A reaction: Not even the greatest fans of deconstruction can deny this, and Derrida more or less admits it. At first glance it certainly looks more like the ancient idea of rhetoric than it looks anything like dialectic.
Deconstruction is the last spasm of romanticism, now become hopeless and destructive [Scruton]
     Full Idea: The subversive patterns of thought in deconstruction are a last spasm of romanticism: one that has given up hope of an otherworldly redemption, and set out instead to destroy the illusions in which other still believe, the source of their power.
     From: Roger Scruton (Upon Nothing: Swansea lecture [1993], p.29)
     A reaction: It seems to be strongly connected with the failure of marxism in Europe, but it also seems to inherit all the values of the Dada movement.
2. Reason / A. Nature of Reason / 7. Status of Reason
Do aesthetic reasons count as reasons, if they are rejectable without contradiction? [Scruton]
     Full Idea: The judgement of beauty makes a claim about its object, and can be supported by reasons. But the reasons do not compel the judgement and can be rejected without contradiction. So are they reasons or aren't they?
     From: Roger Scruton (Beauty: a very short introduction [2011], 1)
     A reaction: I suspect that what he is really referring to is evidence rather than reasons.
2. Reason / D. Definition / 1. Definitions
For a definition we need the words or concepts used, the rules, and the structure of the language [Tarski]
     Full Idea: We must specify the words or concepts which we wish to use in defining the notion of truth; and we must also give the formal rules to which the definition should conform. More generally, we must describe the formal structure of the language.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 01)
     A reaction: This, of course, is a highly formal view of how definition should be achieved, offered in anticipation of one of the most famous definitions in logic (of truth, by Tarski). Normally we assume English and classical logic.
2. Reason / E. Argument / 3. Analogy
Babylonian thinking used analogy, rather than deduction or induction [Watson]
     Full Idea: In Babylon thought seems to have worked mainly by analogy, rather than by the deductive or inductive processes we use in the modern world.
     From: Peter Watson (Ideas [2005], Ch.04)
     A reaction: Analogy seems to be closely related to induction, if it is comparing instances of something. Given their developments in maths and astronomy, they can't have been complete strangers to the 'modern' way of thought.
2. Reason / E. Argument / 4. Open Question
We may define 'good' correctly, but then ask whether the application of the definition is good [Scruton]
     Full Idea: The 'open question' argument is clearly invalid. A question remains open just so long as our ignorance permits. …It may be an open question whether promoting happiness is good, even though this is what 'good' means.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 20.1)
     A reaction: A nice objection. Like small children, we can keep asking questions forever. Whether there is a question to be asked about a thing is not a property of that thing, but of us who ask it.
3. Truth / A. Truth Problems / 1. Truth
A true proposition is consistent with every other true proposition [Scruton]
     Full Idea: A true proposition is consistent with every other true proposition: no truth is contradicted by another.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 9.1)
     A reaction: Interesting. It resembles the rule that if you always tell the truth you don't need to remember what you said. Close to the heart of the concept of truth. Coherence and correspondence.
3. Truth / A. Truth Problems / 2. Defining Truth
Tarski proved that truth cannot be defined from within a given theory [Tarski, by Halbach]
     Full Idea: Tarski's Theorem states that under fairly generally applicable conditions, the assumption that there is a definition of truth within a given theory for the language of that same theory leads to a contradiction.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Volker Halbach - Axiomatic Theories of Truth 1
     A reaction: That might leave room for a definition outside the given theory. I take the main motivation for the axiomatic approach to be a desire to get a theory of truth within the given theory, where Tarski's Theorem says traditional approaches are just wrong.
Tarski proved that any reasonably expressive language suffers from the liar paradox [Tarski, by Horsten]
     Full Idea: Tarski's Theorem on the undefinability of truth says in a language sufficiently rich to talk about itself (which Gödel proved possible, via coding) the liar paradox can be carried out.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Leon Horsten - The Tarskian Turn 02.2
     A reaction: The point is that truth is formally indefinable if it leads inescapably to contradiction, which the liar paradox does. This theorem is the motivation for all modern attempts to give a rigorous account of truth.
'True sentence' has no use consistent with logic and ordinary language, so definition seems hopeless [Tarski]
     Full Idea: The possibility of a consistent use of 'true sentence' which is in harmony with the laws of logic and the spirit of everyday language seems to be very questionable, so the same doubt attaches to the possibility of constructing a correct definition.
     From: Alfred Tarski (The Concept of Truth for Formalized Languages [1933], §1)
     A reaction: This is often cited as Tarski having conclusively proved that 'true' cannot be defined from within a language, but his language here is much more circumspect. Modern critics say the claim depends entirely on classical logic.
In everyday language, truth seems indefinable, inconsistent, and illogical [Tarski]
     Full Idea: In everyday language it seems impossible to define the notion of truth or even to use this notion in a consistent manner and in agreement with the laws of logic.
     From: Alfred Tarski (works [1936]), quoted by Feferman / Feferman - Alfred Tarski: life and logic Int III
     A reaction: [1935] See Logic|Theory of Logic|Semantics of Logic for Tarski's approach to truth.
Definitions of truth should not introduce a new version of the concept, but capture the old one [Tarski]
     Full Idea: The desired definition of truth does not aim to specify the meaning of a familiar word used to denote a novel notion; on the contrary, it aims to catch hold of the actual meaning of an old notion.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 01)
     A reaction: Tarski refers back to Aristotle for an account of the 'old notion'. To many the definition of Tarski looks very weird, so it is important to see that he is trying to capture the original concept.
A definition of truth should be materially adequate and formally correct [Tarski]
     Full Idea: The main problem of the notion of truth is to give a satisfactory definition which is materially adequate and formally correct.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 01)
     A reaction: That is, I take it, that it covers all cases of being true and failing to be true, and it fits in with the logic. The logic is explicitly classical logic, and he is not aiming to give the 'nature' or natural language understanding of the concept.
A rigorous definition of truth is only possible in an exactly specified language [Tarski]
     Full Idea: The problem of the definition of truth obtains a precise meaning and can be solved in a rigorous way only for those languages whose structure has been exactly specified.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 06)
     A reaction: Taski has just stated how to exactly specify the structure of a language. He says definition can only be vague and approximate for natural languages. (The usual criticism of the correspondence theory is its vagueness).
We may eventually need to split the word 'true' into several less ambiguous terms [Tarski]
     Full Idea: A time may come when we find ourselves confronted with several incompatible, but equally clear and precise, conceptions of truth. It will then become necessary to abandon the ambiguous usage of the word 'true', and introduce several terms instead.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 14)
     A reaction: There may be a whiff of the pragmatic attitude to truth here, though that view is not necessarily pluralist. Analytic philosophy needs much more splitting of difficult terms into several more focused terms.
Defining truth presupposes that there can be a true definition [Scruton]
     Full Idea: How can you define truth, without already assuming the distinction between a true definition and a false one?
     From: Roger Scruton (Beauty: a very short introduction [2011], 1)
     A reaction: Don't say we have to accept truth as yet another primitive! Philosophers are out of business if all the basic concepts are primitive. The axiomatic approach to truth is an alternative - by specifying how the primitive should be used.
3. Truth / C. Correspondence Truth / 3. Correspondence Truth critique
Tarski's Theorem renders any precise version of correspondence impossible [Tarski, by Halbach]
     Full Idea: Tarski's Theorem applies to any sufficient precise version of the correspondence theory of truth, and all the other traditional theories of truth.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Volker Halbach - Axiomatic Theories of Truth 1
     A reaction: This is the key reason why modern thinkers have largely dropped talk of the correspondence theory. See Idea 16295.
3. Truth / E. Pragmatic Truth / 1. Pragmatic Truth
The pragmatist does not really have a theory of truth [Scruton]
     Full Idea: The pragmatist does not really have a theory of truth.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 9.4)
3. Truth / F. Semantic Truth / 1. Tarski's Truth / a. Tarski's truth definition
Tarski gave up on the essence of truth, and asked how truth is used, or how it functions [Tarski, by Horsten]
     Full Idea: Tarski emancipated truth theory from traditional philosophy, by no longer posing Pilate's question (what is truth? or what is the essence of truth?) but instead 'how is truth used?', 'how does truth function?' and 'how can its functioning be described?'.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Leon Horsten - The Tarskian Turn 02.2
     A reaction: Horsten, later in the book, does not give up on the essence of truth, and modern theorists are trying to get back to that question by following Tarski's formal route. Modern analytic philosophy at its best, it seems to me.
Tarski did not just aim at a definition; he also offered an adequacy criterion for any truth definition [Tarski, by Halbach]
     Full Idea: Tarski did not settle for a definition of truth, taking its adequacy for granted. Rather he proposed an adequacy criterion for evaluating the adequacy of definitions of truth. The criterion is his famous Convention T.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Volker Halbach - Axiomatic Theories of Truth 3
     A reaction: Convention T famously says the sentence is true if and only if a description of the sentence is equivalent to affirming the sentence. 'Snow is white' iff snow is white.
Tarski enumerates cases of truth, so it can't be applied to new words or languages [Davidson on Tarski]
     Full Idea: Tarski does not tell us how to apply his concept of truth to a new case, whether the new case is a new language or a word newly added to a language. This is because enumerating cases gives no clue for the next or general case.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Donald Davidson - Truth and Predication 1
     A reaction: His account has been compared to a telephone directory. We aim to understand the essence of anything, so that we can fully know it, and explain and predict how it will behave. Either truth is primitive, or I demand to know its essence.
Tarski define truths by giving the extension of the predicate, rather than the meaning [Davidson on Tarski]
     Full Idea: Tarski defined the class of true sentences by giving the extension of the truth predicate, but he did not give the meaning.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Donald Davidson - Truth and Predication 1
     A reaction: This is analogous to giving an account of the predicate 'red' as the set of red objects. Since I regard that as a hopeless definition of 'red', I am inclined to think the same of Tarski's account of truth. It works in the logic, but so what?
Tarski made truth relative, by only defining truth within some given artificial language [Tarski, by O'Grady]
     Full Idea: Tarski's account doesn't hold for natural languages. The general notion of truth is replaced by "true-in-L", where L is a formal language. Hence truth is relativized to each artificial language.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Paul O'Grady - Relativism Ch.2
     A reaction: This is a pretty good indication that Tarski's theory is NOT a correspondence theory, even if its structure may sometimes give that impression.
Tarski has to avoid stating how truths relate to states of affairs [Kirkham on Tarski]
     Full Idea: Tarski has to define truths so as not to make explicit the relation between a true sentence and an obtaining state of affairs. ...He has to list each sentence separately, and simply assign it a state of affairs.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Richard L. Kirkham - Theories of Truth: a Critical Introduction 5.8
     A reaction: He has to avoid semantic concepts like 'reference', because he wants a physicalist theory, according to Kirkham. Thus the hot interest in theories of reference in the 1970s/80s. And also attempts to give a physicalist account of meaning.
It is convenient to attach 'true' to sentences, and hence the language must be specified [Tarski]
     Full Idea: For several reasons it appears most convenient to apply the term 'true' to sentences, and we shall follow this course. Consequently, we must always relate the notion of truth, like that of a sentence, to a specific language.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 02)
     A reaction: Personally I take truth to attach to propositions, since sentences are ambiguous. In Idea 17308 the one sentence expresses three different truths (in my opinion), even though a single sentence (given in the object language) specifies it.
In the classical concept of truth, 'snow is white' is true if snow is white [Tarski]
     Full Idea: If we base ourselves on the classical conception of truth, we shall say that the sentence 'snow is white' is true if snow is white, and it is false if snow is not white.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 04)
     A reaction: I had not realised, prior to his, how closely Tarski is sticking to Aristotle's famous formulation of truth. The point is that you can only specify 'what is' using a language. Putting 'true' in the metalanguage gives specific content to Aristotle.
Scheme (T) is not a definition of truth [Tarski]
     Full Idea: It is a mistake to regard scheme (T) as a definition of truth.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 15)
     A reaction: The point is, I take it, that the definition is the multitude of sentences which are generated by the schema, not the schema itself.
Each interpreted T-sentence is a partial definition of truth; the whole definition is their conjunction [Tarski]
     Full Idea: In 'X is true iff p' if we replace X by the name of a sentence and p by a particular sentence this can be considered a partial definition of truth. The whole definition has to be ...a logical conjunction of all these partial definitions.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 04)
     A reaction: This seems an unprecedented and odd way to define something. Define 'red' by '"This tomato is red" iff this tomato is red', etc? Define 'stone' by collecting together all the stones? The complex T-sentences are infinite in number.
Use 'true' so that all T-sentences can be asserted, and the definition will then be 'adequate' [Tarski]
     Full Idea: We wish to use the term 'true' in such a way that all the equivalences of the form (T) [i.e. X is true iff p] can be asserted, and we shall call a definition of truth 'adequate' if all these equivalences follow from it.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 04)
     A reaction: The interpretation of Tarski's theory is difficult. From this I'm thinking that 'true' is simply being defined as 'assertible'. This is the status of each line in a logical proof, if there is a semantic dimension to the proof (and not mere syntax).
We don't give conditions for asserting 'snow is white'; just that assertion implies 'snow is white' is true [Tarski]
     Full Idea: Semantic truth implies nothing regarding the conditions under which 'snow is white' can be asserted. It implies only that, whenever we assert or reject this sentence, we must be ready to assert or reject the correlated sentence '"snow is white" is true'.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 18)
     A reaction: This appears to identify truth with assertibility, which is pretty much what modern pragmatists say. How do you distinguish 'genuine' assertion from rhetorical, teasing or lying assertions? Genuine assertion implies truth? Hm.
Tarskian semantics says that a sentence is true iff it is satisfied by every sequence [Tarski, by Hossack]
     Full Idea: Tarskian semantics says that a sentence is true iff it is satisfied by every sequence, where a sequence is a set-theoretic individual, a set of ordered pairs each with a natural number as its first element and an object from the domain for its second.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Keith Hossack - Plurals and Complexes 3
'"It is snowing" is true if and only if it is snowing' is a partial definition of the concept of truth [Tarski]
     Full Idea: Statements of the form '"it is snowing" is true if and only if it is snowing' and '"the world war will begin in 1963" is true if and only if the world war will being in 1963' can be regarded as partial definitions of the concept of truth.
     From: Alfred Tarski (The Establishment of Scientific Semantics [1936], p.404)
     A reaction: The key word here is 'partial'. Truth is defined, presumably, when every such translation from the object language has been articulated, which is presumably impossible, given the infinity of concatenated phrases possible in a sentence.
3. Truth / F. Semantic Truth / 1. Tarski's Truth / b. Satisfaction and truth
Truth only applies to closed formulas, but we need satisfaction of open formulas to define it [Burgess on Tarski]
     Full Idea: In Tarski's theory of truth, although the notion of truth is applicable only to closed formulas, to define it we must define a more general notion of satisfaction applicable to open formulas.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by John P. Burgess - Philosophical Logic 1.8
     A reaction: This is a helpful pointer to what is going on in the Tarski definition. It culminates in the 'satisfaction of all sequences', which presumable delivers the required closed formula.
Tarski uses sentential functions; truly assigning the objects to variables is what satisfies them [Tarski, by Rumfitt]
     Full Idea: Tarski invoked the notion of a sentential function, where components are replaced by appropriate variables. A function is then satisfied by assigning objects to variables. An assignment satisfies if the function is true of the things assigned.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Ian Rumfitt - The Boundary Stones of Thought 3.2
     A reaction: [very compressed] This use of sentential functions, rather than sentences, looks like the key to Tarski's definition of truth.
We can define the truth predicate using 'true of' (satisfaction) for variables and some objects [Tarski, by Horsten]
     Full Idea: The truth predicate, says Tarski, should be defined in terms of the more primitive satisfaction relation: the relation of being 'true of'. The fundamental notion is a formula (containing the free variables) being true of a sequence of objects as values.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Leon Horsten - The Tarskian Turn 06.3
For physicalism, reduce truth to satisfaction, then define satisfaction as physical-plus-logic [Tarski, by Kirkham]
     Full Idea: Tarski, a physicalist, reduced semantics to physical and/or logicomathematical concepts. He defined all semantic concepts, save satisfaction, in terms of truth. Then truth is defined in terms of satisfaction, and satisfaction is given non-semantically.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Richard L. Kirkham - Theories of Truth: a Critical Introduction 5.1
     A reaction: The term 'logicomathematical' is intended to cover set theory. Kirkham says you can remove these restrictions from Tarski's theory, and the result is a version of the correspondence theory.
Insight: don't use truth, use a property which can be compositional in complex quantified sentence [Tarski, by Kirkham]
     Full Idea: Tarski's great insight is find another property, since open sentences are not truth. It must be had by open and genuine sentences. Clauses having it must generate it for the whole sentence. Truth can be defined for sentences by using it.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Richard L. Kirkham - Theories of Truth: a Critical Introduction 5.4
     A reaction: The proposed property is 'satisfaction', which can (unlike truth) be a feature open sentences (such as 'x is green', which is satisfied by x='grass'),
Tarski gave axioms for satisfaction, then derived its explicit definition, which led to defining truth [Tarski, by Davidson]
     Full Idea: Tarski turned his axiomatic characterisation of satisfaction into an explicit definition of the satisfaction-predicate using some fancy set theoretical apparatus, and this in turn leads to the explicit definition of the truth predicate.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Donald Davidson - Truth and Predication 7
The best truth definition involves other semantic notions, like satisfaction (relating terms and objects) [Tarski]
     Full Idea: It turns out that the simplest and most natural way of obtaining an exact definition of truth is one which involves the use of other semantic notions, e.g. the notion of satisfaction (...which expresses relations between expressions and objects).
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 05)
     A reaction: While the T-sentences appear to be 'minimal' and 'deflationary', it seems important to remember that 'satisfaction', which is basic to his theory, is a very robust notion. He actually mentions 'objects'. But see Idea 19185.
Specify satisfaction for simple sentences, then compounds; true sentences are satisfied by all objects [Tarski]
     Full Idea: To define satisfaction we indicate which objects satisfy the simplest sentential functions, then state the conditions for compound functions. This applies automatically to sentences (with no free variables) so a true sentence is satisfied by all objects.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 11)
     A reaction: I presume nothing in the domain of objects can conflict with a sentence that has been satisfied by some of them, so 'all' the objects satisfy the sentence. Tarski doesn't use the word 'domain'. Basic satisfaction seems to be stipulated.
3. Truth / F. Semantic Truth / 1. Tarski's Truth / c. Meta-language for truth
We can't use a semantically closed language, or ditch our logic, so a meta-language is needed [Tarski]
     Full Idea: In a 'semantically closed' language all sentences which determine the adequate usage of 'true' can be asserted in the language. ...We can't change our logic, so we reject such languages. ...So must use two different languages to discuss truth.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 08-09)
     A reaction: This section explains why a meta-language is required. It rests entirely on the existence of the Liar paradox is a semantically closed language.
The metalanguage must contain the object language, logic, and defined semantics [Tarski]
     Full Idea: Every sentence which occurs in the object language must also occur in the metalanguage, or can be translated into the metalanguage. There must also be logical terms, ...and semantic terms can only be introduced in the metalanguage by definition.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 09)
     A reaction: He suggest that if the languages are 'typed', the meta-languag, to be 'richer', must contain variables of a higher logica type. Does this mean second-order logic?
3. Truth / F. Semantic Truth / 2. Semantic Truth
Tarski defined truth for particular languages, but didn't define it across languages [Davidson on Tarski]
     Full Idea: Tarski defined various predicates of the form 's is true in L', each applicable to a single language, but he failed to define a predicate of the form 's is true in L' for variable 'L'.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Donald Davidson - Truth and Predication 1
     A reaction: You might say that no one defines 'tree' to be just 'in English', but we might define 'multiplies' to be in Peano Arithmetic. This indicates the limited and formal nature of what Tarski was trying to achieve.
Tarski didn't capture the notion of an adequate truth definition, as Convention T won't prove non-contradiction [Halbach on Tarski]
     Full Idea: Every really adequate theory of truth should also prove the law of non-contradiction. Therefore Tarski's notion of adequacy in Convention T fails to capture the intuitive notion of adequacy he is after.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Volker Halbach - Axiomatic Theories of Truth 3
     A reaction: Tarski points out this weakness, in a passage quoted by Halbach. This obviously raises the question of what truth theories should prove, and this is explored by Halbach. If they start to prove arithmetic, we get nervous. Non-contradiction and x-middle?
Tarski says that his semantic theory of truth is completely neutral about all metaphysics [Tarski, by Haack]
     Full Idea: Tarski says "we may remain naïve realists or idealists, empiricists or metaphysicians… The semantic conception is completely neutral toward all these issues."
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Susan Haack - Philosophy of Logics 7.5
Physicalists should explain reference nonsemantically, rather than getting rid of it [Tarski, by Field,H]
     Full Idea: Tarski work was to persuade physicalist that eliminating semantics was on the wrong track, and that we should explicate notions in the theory of reference nonsemantically rather than simply get rid of them.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Hartry Field - Tarski's Theory of Truth §3
A physicalist account must add primitive reference to Tarski's theory [Field,H on Tarski]
     Full Idea: We need to add theories of primitive reference to Tarski's account if we are to establish the notion of truth as a physicalistically acceptable notion.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Hartry Field - Tarski's Theory of Truth §4
     A reaction: This is the main point of Field's paper, and sounds very plausible to me. There is something major missing from Tarski, and at some point there needs to be a 'primitive' notion of thought and language making contact with the world, as it can't be proved.
If listing equivalences is a reduction of truth, witchcraft is just a list of witch-victim pairs [Field,H on Tarski]
     Full Idea: By similar standards of reduction to Tarski's, one might prove witchcraft compatible with physicalism, as long as witches cast only a finite number of spells. We merely list witch-and-victim pairs, with no mention of the terms of witchcraft theory.
     From: comment on Alfred Tarski (The Semantic Conception of Truth [1944], 04) by Hartry Field - Tarski's Theory of Truth §4
Tarski made truth respectable, by proving that it could be defined [Tarski, by Halbach]
     Full Idea: Tarski's proof of the definability of truth allowed him to establish truth as a respectable notion by his standards.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Volker Halbach - Axiomatic Theories of Truth 3
Tarski had a theory of truth, and a theory of theories of truth [Tarski, by Read]
     Full Idea: Besides a theory of truth of his own, Tarski developed a theory of theories of truth.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Stephen Read - Thinking About Logic Ch.1
     A reaction: The famous snow biconditional is the latter, and the recursive account based on satisfaction is the former.
Tarski's 'truth' is a precise relation between the language and its semantics [Tarski, by Walicki]
     Full Idea: Tarski's analysis of the concept of 'truth' ...is given a precise treatment as a particular relation between syntax (language) and semantics (the world).
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Michal Walicki - Introduction to Mathematical Logic History E.1
     A reaction: My problem is that the concept of truth seems to apply to animal minds, which are capable of making right or wrong judgements, and of realising their errors. Tarski didn't make universal claims for his account.
Tarskian truth neglects the atomic sentences [Mulligan/Simons/Smith on Tarski]
     Full Idea: The Tarskian account of truth neglects the atomic sentences.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Mulligan/Simons/Smith - Truth-makers §1
     A reaction: Yes! The whole Tarskian edifice is built on a foundation which it is taboo even to mention. If truth is just the assignment of 'T' and 'F', that isn't even the beginnings of a theory of 'truth'.
3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth
Tarski's had the first axiomatic theory of truth that was minimally adequate [Tarski, by Horsten]
     Full Idea: Tarski's work is the earliest axiomatic theory of truth that meets minimal adequacy conditions.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Leon Horsten - The Tarskian Turn 01.1
     A reaction: This shows a way in which Tarski gave a new direction to the study of truth. Subsequent theories have been 'stronger'.
Tarski defined truth, but an axiomatisation can be extracted from his inductive clauses [Tarski, by Halbach]
     Full Idea: Tarski preferred a definition of truth, but from that an axiomatisation can be extracted. His induction clauses can be turned into axioms. Hence he opened the way to axiomatic theories of truth.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Volker Halbach - Axiomatic Theories of Truth 3
Tarski thought axiomatic truth was too contingent, and in danger of inconsistencies [Tarski, by Davidson]
     Full Idea: Tarski preferred an explicit definition of truth to axioms. He says axioms have a rather accidental character, only a definition can guarantee the continued consistency of the system, and it keeps truth in harmony with physical science and physicalism.
     From: report of Alfred Tarski (works [1936]) by Donald Davidson - Truth and Predication 2 n2
     A reaction: Davidson's summary, gleaned from various sources in Tarski. A big challenge for modern axiom systems is to avoid inconsistency, which is extremely hard to do (given that set theory is not sure of having achieved it).
We need an undefined term 'true' in the meta-language, specified by axioms [Tarski]
     Full Idea: We have to include the term 'true', or some other semantic term, in the list of undefined terms of the meta-language, and to express fundamental properties of the notion of truth in a series of axioms.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 10)
     A reaction: It sounds as if Tarski semantic theory gives truth for the object language, but then an axiomatic theory of truth is also needed for the metalanguage. Halbch and Horsten seem to want an axiomatic theory in the object language.
3. Truth / H. Deflationary Truth / 1. Redundant Truth
Truth can't be eliminated from universal claims, or from particular unspecified claims [Tarski]
     Full Idea: Truth can't be eliminated from universal statements saying all sentences of a certain type are true, or from the proof that 'all consequences of true sentences are true'. It is also needed if we can't name the sentence ('Plato's first sentence is true').
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 16)
     A reaction: This points to the deflationary view of truth, if its only role is in talking about other sentences in this way. Tarski gives the standard reason for rejecting the Redundancy view.
3. Truth / H. Deflationary Truth / 2. Deflationary Truth
Semantics is a very modest discipline which solves no real problems [Tarski]
     Full Idea: Semantics as it is conceived in this paper is a sober and modest discipline which has no pretensions to being a universal patent-medicine for all the ills and diseases of mankind, whether imaginary or real.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 05)
     A reaction: Written in 1944. This remark encourages the minimal or deflationary interpretation of his theory of truth, but see the robust use of 'satisfaction' in Idea 19184.
4. Formal Logic / B. Propositional Logic PL / 3. Truth Tables
Truth tables give prior conditions for logic, but are outside the system, and not definitions [Tarski]
     Full Idea: Logical sentences are often assigned preliminary conditions under which they are true or false (often given as truth tables). However, these are outside the system of logic, and should not be regarded as definitions of the terms involved.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 15)
     A reaction: Hence, presumably, the connectives are primitives (with no nature or meaning), and the truth tables are axioms for their use? This opinion of Tarski's may have helped shift the preference towards natural deduction introduction and elimination rules.
5. Theory of Logic / A. Overview of Logic / 2. History of Logic
Nowadays logic is seen as the science of extensions, not intensions [Scruton]
     Full Idea: Logicians have come increasingly to realise that logic is the science not of the intension, but of the extension of terms.
     From: Roger Scruton (Short History of Modern Philosophy [1981], Ch.4)
     A reaction: I take this to be because the notion of a 'set' is basic, which is defined strictly in terms of its members. This move is probably because we can be clear about extensions, but not intensions. Tidiness is no substitute for complex truth.
5. Theory of Logic / A. Overview of Logic / 3. Value of Logic
Set theory and logic are fairy tales, but still worth studying [Tarski]
     Full Idea: People have asked me, 'How can you, a nominalist, do work in set theory and in logic, which are theories about things you do not believe in?' ...I believe that there is a value even in fairy tales and the study of fairy tales.
     From: Alfred Tarski (talk [1965]), quoted by Feferman / Feferman - Alfred Tarski: life and logic
     A reaction: This is obviously an oversimplification. I don't think for a moment that Tarski literally believed that the study of fairy tales had as much value as the study of logic. Why do we have this particular logic, and not some other?
5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
There is no clear boundary between the logical and the non-logical [Tarski]
     Full Idea: No objective grounds are known to me which permit us to draw a sharp boundary between the two groups of terms, the logical and the non-logical.
     From: Alfred Tarski (works [1936]), quoted by Alan Musgrave - Logicism Revisited §3
     A reaction: Musgrave is pointing out that this is bad news if you want to 'reduce' something like arithmetic to logic. 'Logic' is a vague object.
5. Theory of Logic / A. Overview of Logic / 6. Classical Logic
A language: primitive terms, then definition rules, then sentences, then axioms, and finally inference rules [Tarski]
     Full Idea: For a language, we must enumerate the primitive terms, and the rules of definition for new terms. Then we must distinguish the sentences, and separate out the axioms from amng them, and finally add rules of inference.
     From: Alfred Tarski (The Establishment of Scientific Semantics [1936], p.402)
     A reaction: [compressed] This lays down the standard modern procedure for defining a logical language. Once all of this is in place, we then add a semantics and we are in business. Natural deduction tries to do without the axioms.
5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence
Split out the logical vocabulary, make an assignment to the rest. It's logical if premises and conclusion match [Tarski, by Rumfitt]
     Full Idea: Tarski made a division of logical and non-logical vocabulary. He then defined a model as a non-logical assignment satisfying the corresponding sentential function. Then a conclusion follows logically if every model of the premises models the conclusion.
     From: report of Alfred Tarski (The Concept of Logical Consequence [1936]) by Ian Rumfitt - The Boundary Stones of Thought 3.2
     A reaction: [compressed] This is Tarski's account of logical consequence, which follows on from his account of truth. 'Logical validity' is then 'true in every model'. Rumfitt doubts whether Tarski has given the meaning of 'logical consequence'.
5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=
Logical consequence is when in any model in which the premises are true, the conclusion is true [Tarski, by Beall/Restall]
     Full Idea: Tarski's 1936 definition of logical consequence is that in any model in which the premises are true, the conclusion is true too (so that no model can make the conclusion false).
     From: report of Alfred Tarski (works [1936]) by JC Beall / G Restall - Logical Consequence 3
     A reaction: So the general idea is that a logical consequence is distinguished by being unstoppable. Sounds good. But then we have monotonic and non-monotonic logics, which (I'm guessing) embody different notions of consequence.
Logical consequence: true premises give true conclusions under all interpretations [Tarski, by Hodges,W]
     Full Idea: Tarski's definition of logical consequence (1936) is that in a fully interpreted formal language an argument is valid iff under any allowed interpretation of its nonlogical symbols, if the premises are true then so is the conclusion.
     From: report of Alfred Tarski (works [1936]) by Wilfrid Hodges - Model Theory 3
     A reaction: The idea that you can only make these claims 'under an interpretation' seems to have had a huge influence on later philosophical thinking.
X follows from sentences K iff every model of K also models X [Tarski]
     Full Idea: The sentence X follows logically from the sentences of the class K if and only if every model of the class K is also a model of the sentence X.
     From: Alfred Tarski (The Concept of Logical Consequence [1936], p.417)
     A reaction: [see Idea 13343 for his account of a 'model'] He is offering to define logical consequence in general, but this definition fits what we now call 'semantic consequence', written |=. This it is standard practice to read |= as 'models'.
5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
The truth definition proves semantic contradiction and excluded middle laws (not the logic laws) [Tarski]
     Full Idea: With our definition of truth we can prove the laws of contradiction and excluded middle. These semantic laws should not be identified with the related logical laws, which belong to the sentential calculus, and do not involve 'true' at all.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 12)
     A reaction: Very illuminating. I wish modern thinkers could be so clear about this matter. The logic contains 'P or not-P'. The semantics contains 'P is either true or false'. Critics say Tarski has presupposed 'classical' logic.
5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic
Identity is invariant under arbitrary permutations, so it seems to be a logical term [Tarski, by McGee]
     Full Idea: Tarski showed that the only binary relations invariant under arbitrary permutations are the universal relation, the empty relation, identity and non-identity, thus giving us a reason to include '=' among the logical terms.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Vann McGee - Logical Consequence 6
     A reaction: Tarski was looking for a criterion to distinguish logical from non-logical terms, since his account of logical validity depended on it. This idea lies behind whether a logic is or is not specified to be 'with identity' (i.e. using '=').
5. Theory of Logic / F. Referring in Logic / 1. Naming / c. Names as referential
A name denotes an object if the object satisfies a particular sentential function [Tarski]
     Full Idea: To say that the name x denotes a given object a is the same as to stipulate that the object a ... satisfies a sentential function of a particular type.
     From: Alfred Tarski (The Concept of Truth for Formalized Languages [1933], p.194)
5. Theory of Logic / I. Semantics of Logic / 1. Semantics of Logic
Tarski built a compositional semantics for predicate logic, from dependent satisfactions [Tarski, by McGee]
     Full Idea: Tarski discovered how to give a compositional semantics for predicate calculus, defining truth in terms of satisfaction, and showing how satisfaction for a complicated formula depends on satisfaction of the simple subformulas.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Vann McGee - Logical Consequence 4
     A reaction: The problem was that the subformulas may contain free variables, and thus not be sentences with truth values. 'Satisfaction' can handle this, where 'truth' cannot (I think).
Tarksi invented the first semantics for predicate logic, using this conception of truth [Tarski, by Kirkham]
     Full Idea: Tarski invented a formal semantics for quantified predicate logic, the logic of reasoning about mathematics. The heart of this great accomplishment is his theory of truth. It has been called semantic 'theory' of truth, but Tarski preferred 'conception'.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Richard L. Kirkham - Theories of Truth: a Critical Introduction 5.1
Semantics is the concepts of connections of language to reality, such as denotation, definition and truth [Tarski]
     Full Idea: Semantics is the totality of considerations concerning concepts which express connections between expressions of a language and objects and states of affairs referred to by these expressions. Examples are denotation, satisfaction, definition and truth.
     From: Alfred Tarski (The Establishment of Scientific Semantics [1936], p.401)
     A reaction: Interestingly, he notes that it 'is not commonly recognised' that truth is part of semantics. Nowadays truth seems to be the central concept in most semantics.
A language containing its own semantics is inconsistent - but we can use a second language [Tarski]
     Full Idea: People have not been aware that the language about which we speak need by no means coincide with the language in which we speak. ..But the language which contains its own semantics must inevitably be inconsistent.
     From: Alfred Tarski (The Establishment of Scientific Semantics [1936], p.402)
     A reaction: It seems that Tarski was driven to propose the metalanguage approach mainly by the Liar Paradox.
5. Theory of Logic / I. Semantics of Logic / 4. Satisfaction
A sentence is satisfied when we can assert the sentence when the variables are assigned [Tarski]
     Full Idea: Here is a partial definition of the concept of satisfaction: John and Peter satisfy the sentential function 'X and Y are brothers' if and only if John and Peter are brothers.
     From: Alfred Tarski (The Establishment of Scientific Semantics [1936], p.405)
     A reaction: Satisfaction applies to open sentences and truth to closed sentences (with named objects). He uses the notion of total satisfaction to define truth. The example is a partial definition, not just an illustration.
Satisfaction is the easiest semantical concept to define, and the others will reduce to it [Tarski]
     Full Idea: It has been found useful in defining semantical concepts to deal first with the concept of satisfaction; both because the definition of this concept presents relatively few difficulties, and because the other semantical concepts are easily reduced to it.
     From: Alfred Tarski (The Establishment of Scientific Semantics [1936], p.406)
     A reaction: See Idea 13339 for his explanation of satisfaction. We just say that a open sentence is 'acceptable' or 'assertible' (or even 'true') when particular values are assigned to the variables. Then sentence is then 'satisfied'.
5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models
The object language/ metalanguage distinction is the basis of model theory [Tarski, by Halbach]
     Full Idea: Tarski's distinction between object and metalanguage forms the basis of model theory.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Volker Halbach - Axiomatic Theories of Truth 11
A 'model' is a sequence of objects which satisfies a complete set of sentential functions [Tarski]
     Full Idea: An arbitrary sequence of objects which satisfies every sentential function of the sentences L' will be called a 'model' or realization of the class L of sentences. There can also be a model of a single sentence is this way.
     From: Alfred Tarski (The Concept of Logical Consequence [1936], p.417)
     A reaction: [L' is L with the constants replaced by variables] Tarski is the originator of model theory, which is central to modern logic. The word 'realization' is a helpful indicator of what he has in mind. A model begins to look like a possible world.
5. Theory of Logic / K. Features of Logics / 2. Consistency
Using the definition of truth, we can prove theories consistent within sound logics [Tarski]
     Full Idea: Using the definition of truth we are in a position to carry out the proof of consistency for deductive theories in which only (materially) true sentences are (formally) provable.
     From: Alfred Tarski (The Establishment of Scientific Semantics [1936], p.407)
     A reaction: This is evidently what Tarski saw as the most important first fruit of his new semantic theory of truth.
5. Theory of Logic / L. Paradox / 6. Paradoxes in Language / a. The Liar paradox
Tarski avoids the Liar Paradox, because truth cannot be asserted within the object language [Tarski, by Fisher]
     Full Idea: In Tarski's account of truth, self-reference (as found in the Liar Paradox) is prevented because the truth predicate for any given object language is never a part of that object language, and so a sentence can never predicate truth of itself.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Jennifer Fisher - On the Philosophy of Logic 03.I
     A reaction: Thus we solve the Liar Paradox by ruling that 'you are not allowed to say that'. Hm. The slightly odd result is that in any conversation about whether p is true, we end up using (logically speaking) two different languages simultaneously. Hm.
The Liar makes us assert a false sentence, so it must be taken seriously [Tarski]
     Full Idea: In my judgement, it would be quite wrong and dangerous from the point of view of scientific progress to depreciate the importance of nhtinomies like the Liar Paradox, and treat them as jokes. The fact is we have been compelled to assert a false sentence.
     From: Alfred Tarski (The Semantic Conception of Truth [1944], 07)
     A reaction: This is the heartfelt cry of the perfectionist, who wants everything under control. It was the dream of the age of Frege to Hilbert, which gradually eroded after Gödel's Incompleteness proof. Short ordinary folk panic about the Liar?
6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / c. Counting procedure
Could you be intellectually acquainted with numbers, but unable to count objects? [Scruton]
     Full Idea: Could someone have a perfect intellectual acquaintance with numbers, but be incapable of counting a flock of sheep?
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 26.6)
Mesopotamian numbers applied to specific things, and then became abstract [Watson]
     Full Idea: To begin with, in Mesopotamia, counting systems applied to specific commodities (so the symbol for 'three sheep' applied only to sheep, and 'three cows' applied only to cows), but later words for abstract qualities emerged.
     From: Peter Watson (Ideas [2005], Ch.04)
     A reaction: It seems from this that we actually have a record of the discovery of true numbers. Delightful. I think the best way to describe what happened is that they began to spot patterns.
6. Mathematics / B. Foundations for Mathematics / 3. Axioms for Geometry
Tarski improved Hilbert's geometry axioms, and without set-theory [Tarski, by Feferman/Feferman]
     Full Idea: Tarski found an elegant new axiom system for Euclidean geometry that improved Hilbert's earlier version - and he formulated it without the use of set-theoretical notions.
     From: report of Alfred Tarski (works [1936]) by Feferman / Feferman - Alfred Tarski: life and logic Ch.9
6. Mathematics / C. Sources of Mathematics / 7. Formalism
Tarski's theory of truth shifted the approach away from syntax, to set theory and semantics [Feferman/Feferman on Tarski]
     Full Idea: Tarski's theory of truth has been most influential in eventually creating a shift from the entirely syntactic way of doing things in metamathematics (promoted by Hilbert in the 1920s, in his theory of proofs), towards a set-theoretical, semantic approach.
     From: comment on Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Feferman / Feferman - Alfred Tarski: life and logic Int III
6. Mathematics / C. Sources of Mathematics / 10. Constructivism / b. Intuitionism
If maths contains unprovable truths, then maths cannot be reduced to a set of proofs [Scruton]
     Full Idea: If there can be unprovable truths of mathematics, then mathematics cannot be reduced to the proofs whereby we construct it.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 26.7)
8. Modes of Existence / B. Properties / 12. Denial of Properties
If possible worlds are needed to define properties, maybe we should abandon properties [Scruton]
     Full Idea: If the only way of defining properties involves quantifying over possible worlds, this could be taken as another reason for abandoning properties altogether.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 26.4)
8. Modes of Existence / E. Nominalism / 1. Nominalism / a. Nominalism
I am a deeply convinced nominalist [Tarski]
     Full Idea: I am a nominalist. This is a very deep conviction of mine. ...I am a tortured nominalist.
     From: Alfred Tarski (talk [1965]), quoted by Feferman / Feferman - Alfred Tarski: life and logic Int I
     A reaction: I too am of the nominalist persuasion, but I don't feel justified in such a strong commitment.
10. Modality / A. Necessity / 11. Denial of Necessity
Hume assumes that necessity can only be de dicto, not de re [Scruton]
     Full Idea: It was one of the assumptions of Hume's empiricism that all necessities are de dicto: i.e. they are artefacts of language.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 13.5)
10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / c. Possible but inconceivable
The conceivable can't be a test of the possible, if there are things which are possible but inconceivable [Scruton]
     Full Idea: If there are things which are possible but inconceivable, we must abandon the view, which has had a considerable following since Descartes, that the conceivable is a test of the possible.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 25)
11. Knowledge Aims / A. Knowledge / 1. Knowledge
Epistemology is about the justification of belief, not the definition of knowledge [Scruton]
     Full Idea: In my view the concept of knowledge is of no very great interest in epistemology, which actually concerns the justification of belief.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 22)
     A reaction: I think this is an excellent thought. I see knowledge as slippery, and partially contextual, and I don't care whether someone precisely 'knows' something. I just want to know why they believe it.
11. Knowledge Aims / A. Knowledge / 4. Belief / b. Elements of beliefs
Having beliefs involves recognition, expectation and surprise [Scruton]
     Full Idea: With the concept of belief (e.g. in animals) comes recognition, expectation and surprise.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.15)
     A reaction: A good observation. It is always tempting to see mental faculties in isolation, but each one drags along other capacities with it. Looks a bit holistic.
11. Knowledge Aims / A. Knowledge / 4. Belief / f. Animal beliefs
If an animal has beliefs, that implies not only that it can make mistakes, but that it can learn from them [Scruton]
     Full Idea: To say that an animal has beliefs is to imply not just that it can make mistakes, but also that it can learn from them.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.15)
     A reaction: A bold claim which is hard to substantiate. Seems right, though. Why would they change a belief? It can't be a belief if it isn't changeable. That would be an instinct.
11. Knowledge Aims / B. Certain Knowledge / 4. The Cogito
In the Cogito argument consciousness develops into self-consciousness [Scruton]
     Full Idea: In the course of the argument the first person has acquired a character; he is not merely conscious, but self-conscious.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 4)
12. Knowledge Sources / A. A Priori Knowledge / 5. A Priori Synthetic
Maybe our knowledge of truth and causation is synthetic a priori [Scruton]
     Full Idea: 'Every event has a cause' and 'truth is correspondence to facts' are candidates for being synthetic a priori knowledge.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 13.2)
12. Knowledge Sources / B. Perception / 1. Perception
Perception (which involves an assessment) is a higher state than sensation [Scruton]
     Full Idea: Perception is a higher state than sensation: it involves not just a response to the outer world, but also an assessment of it.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.14)
     A reaction: This seems to me a simple but really important distinction, even though it wickedly uses the word 'higher', which Greeks like but post-Humeans struggle with. But we all know it is higher, don't we?
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / c. Primary qualities
Touch only seems to reveal primary qualities [Scruton]
     Full Idea: Touch seems to deliver a purely primary-quality account of the world.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 24)
     A reaction: Interesting, though a little over-confident. It seems occasionally possible for touch to be an illusion.
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / e. Primary/secondary critique
We only conceive of primary qualities as attached to secondary qualities [Scruton]
     Full Idea: Bradley argued that we cannot conceive of primary qualities except as attached to secondary qualities.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 10.1)
If primary and secondary qualities are distinct, what has the secondary qualities? [Scruton]
     Full Idea: If primary and secondary qualities are distinct, what do secondary qualities inhere in?
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], Ch.10 n)
     A reaction: What is the problem? A pin causes me pain, but I know the pain isn't in the pin. It is the same with colour. It is a mental property, if you like, triggered by a wavelength of radiation.
12. Knowledge Sources / B. Perception / 3. Representation
The representational theory says perceptual states are intentional states [Scruton]
     Full Idea: The representational theory is the unsurprising view that perceptual states are intentional, like beliefs, emotions and desires.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 23.3)
13. Knowledge Criteria / C. External Justification / 2. Causal Justification
My belief that it will rain tomorrow can't be caused by its raining tomorrow [Scruton]
     Full Idea: It is impossible that my present belief that it will rain tomorrow is caused by its raining tomorrow.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 22.4)
     A reaction: This doesn't demolish a causal account of belief. It would be very surprising if I were to believe it was going to rain tomorrow for no cause whatsoever. That would be irrational.
13. Knowledge Criteria / D. Scepticism / 6. Scepticism Critique
Logical positivism avoids scepticism, by closing the gap between evidence and conclusion [Scruton]
     Full Idea: If the evidence for p is q, and that is the only evidence there is or can be, then 'p' means q. Hence there is no gap between evidence and conclusion, and the sceptical problem does not arise.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 3.2)
13. Knowledge Criteria / E. Relativism / 6. Relativism Critique
Why should you believe someone who says there are no truths? [Scruton]
     Full Idea: A writer who says that there are no truths, or that all truth is 'merely relative', is asking you not to believe him. So don't.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 1.1)
15. Nature of Minds / B. Features of Minds / 1. Consciousness / d. Purpose of consciousness
There is consciousness whenever behaviour must be explained in terms of mental activity [Scruton]
     Full Idea: There is consciousness whenever behaviour must be explained in terms of mental activity.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.23)
     A reaction: Not a point that would trouble an eliminativist, as it sounds suspiciously circular or question-begging.
15. Nature of Minds / C. Capacities of Minds / 1. Faculties
There are 23 core brain functions, with known circuit, transmitters, genes and behaviour [Watson]
     Full Idea: In 2014 the National Institutes of Mental Health published a list of 23 core brain functions and their associated neural circuitry, neurotransmitters and genes, and the behaviour and emotions that go with them.
     From: Peter Watson (Convergence [2016], 16 'Physics')
     A reaction: They were interested in the functions behind mental health, but I am interested in the functions behind our belief systems, which might produce a different focus. Sub-functions, perhaps.
16. Persons / A. Concept of a Person / 2. Persons as Responsible
Our concept of a person is derived from Roman law [Scruton]
     Full Idea: Our concept of a person is derived from Roman law.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.28)
     A reaction: Interesting. I don't believe Roman legislators invented it, so where did it originate? Interesting that it is legalistic - a thing to which rights can accrue. Compare character, to which virtues accrue.
16. Persons / F. Free Will / 6. Determinism / a. Determinism
Every event having a cause, and every event being determined by its cause, are not the same [Scruton]
     Full Idea: To say that every event has a cause is one thing; to say that every event is determined by its cause is quite another thing.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 17.1)
17. Mind and Body / A. Mind-Body Dualism / 2. Interactionism
The very concept of a substance denies the possibility of mutual interaction and dependence [Scruton]
     Full Idea: It is often held to be a consequence of the rationalist conception of substance, that separate substances cannot interact (since causal interaction is a form of mutual dependence).
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], Ch.16 n)
     A reaction: Yes, substances seem incapable of interaction, just as Leibniz argues that perfections could never interact. They are too pure.
17. Mind and Body / B. Behaviourism / 4. Behaviourism Critique
Conditioning may change behaviour without changing the mind [Scruton]
     Full Idea: Conditioning involves a change of behaviour, but not necessarily a change of mind.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.16)
     A reaction: I am inclined to doubt this. If I was conditioned in some way, I would expect my conscious state to change as well as my behaviour.
17. Mind and Body / E. Mind as Physical / 1. Physical Mind
Traditional ideas of the mind were weakened in the 1950s by mind-influencing drugs [Watson]
     Full Idea: One development in particular in the 1950s helped to discredit the traditional concept of the mind. This was medical drugs that influenced the workings of the brain.
     From: Peter Watson (Convergence [2016], 16 'Intro')
     A reaction: This explains Ryle's 1949 book, and the Australian physicalists emerging in the late 1950s. Philosophers don't grasp how their subject is responsive to other areas of human knowledge. Of course, opium had always done this.
18. Thought / A. Modes of Thought / 3. Emotions / c. Role of emotions
An emotion is a motive which is also a feeling [Scruton]
     Full Idea: An emotion is a motive which is also a feeling.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.17)
     A reaction: What is a motive without feeling? A universalised judgment, perhaps. Which comes first, the motivation or the feeling?
18. Thought / A. Modes of Thought / 5. Rationality / a. Rationality
Only rational beings are attentive without motive or concern [Scruton]
     Full Idea: It is only rational beings who can be attentive without a motive; only rational beings who can be interested in that in which they have no interest.
     From: Roger Scruton (Laughter [1982], §12)
     A reaction: Rational beings make long term plans, so they cannot prejudge which things may turn out to be of interest to them. Scruton (a Kantian) makes it sound a little loftier than it actually is.
18. Thought / A. Modes of Thought / 5. Rationality / c. Animal rationality
Do we use reason to distinguish people from animals, or use that difference to define reason? [Scruton]
     Full Idea: The difficulty of defining reason suggests that while pretending to use it to define the difference between humans and animals, they are actually using that difference to define reason.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.19)
     A reaction: Too pessimistic. We are perfectly capable of saying there is no significant difference between us and an alien. We have obvious abilities, which we can partly specify.
18. Thought / C. Content / 2. Ideas
Cartesian 'ideas' confuse concepts and propositions [Scruton]
     Full Idea: Cartesian 'ideas' seem to be both concepts and propositions at once.
     From: Roger Scruton (Short History of Modern Philosophy [1981], Ch.4)
     A reaction: This seems to be the simple reason why modern philosophers don't like this seventeenth century notion. There is something slightly too tidy about the modern notion of propositions built out of concepts. Animals see propositions in a flash.
19. Language / E. Analyticity / 1. Analytic Propositions
Sentences are 'analytical' if every sequence of objects models them [Tarski]
     Full Idea: A class of sentences can be called 'analytical' if every sequence of objects is a model of it.
     From: Alfred Tarski (The Concept of Logical Consequence [1936], p.418)
     A reaction: See Idea 13344 and Idea 13343 for the context of this assertion.
19. Language / F. Communication / 4. Private Language
Wittgenstein makes it impossible to build foundations from something that is totally private [Scruton]
     Full Idea: Wittgenstein's point is that if I search for foundations in what can only be known to me, then the belief that I have discovered those foundations will also fall victim to Descartes' demon.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 5.3)
     A reaction: Why should foundations based in wider society or a language community fare any better? Getting a lot of people to agree won't trouble the demon too much. Flat earthers.
21. Aesthetics / A. Aesthetic Experience / 1. Aesthetics
Aesthetics has risen and fallen with Romanticism [Scruton]
     Full Idea: The rise and fall (as we presently perceive them) of aesthetics have been contemporaneous with the rise and fall of Romanticism.
     From: Roger Scruton (Recent Aesthetics in England and America [1980], p.3)
     A reaction: Maybe it started a little before Romanticism, as part of the Englightenment aim of being rational about everything, and maybe it survives Romanticism because we want to be scientific about everything.
21. Aesthetics / A. Aesthetic Experience / 2. Aesthetic Attitude
Aesthetic experience informs the world with the values of the observer [Scruton]
     Full Idea: It is possible to conclude that aesthetic experience has a peculiar practical significance: it represents the world as informed by the values of the observer.
     From: Roger Scruton (Recent Aesthetics in England and America [1980], p.13)
     A reaction: An excellent remark. If you look at, or listen to, anything, you can make a conscious effort to drain away your personal values (objectivity; science?), or you can consciously flood them with values. But moral and aesthetic vision must differ...
Art gives us imaginary worlds which we can view impartially [Scruton]
     Full Idea: One aim of art is to present imaginary worlds, towards which we can adopt, as part of the integral aesthetic attitude, a posture of impartial concern.
     From: Roger Scruton (Beauty: a very short introduction [2011], 5)
     A reaction: It connects to the pleasure of watching people when they don't know they are being watched (such as watching the street from a restaurant window). Scruton's suggestion makes art resemble examples in philosophy. Cf the Frege-Geach problem in ethics.
The pleasure taken in beauty also aims at understanding and valuing [Scruton]
     Full Idea: Like the pleasure in friendship, the pleasure in beauty is curious: it aims to understand its object, and to value what it finds.
     From: Roger Scruton (Beauty: a very short introduction [2011], 1)
     A reaction: At least he is trying to pin down the way in which aesthetic pleasure is phenomenologically different from other kinds of pleasure.
21. Aesthetics / A. Aesthetic Experience / 3. Taste
Taste is the capacity to judge an object or representation which is thought to be beautiful [Tarski, by Schellekens]
     Full Idea: Taste is the faculty for judging an object or a kind of representation through a satisfaction or a dissatisfaction, ...where the object of such a satisfaction is called beautiful.
     From: report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Elizabeth Schellekens - Immanuel Kant (aesthetics) 1
     A reaction: We usually avoid the word 'faculty' nowadays, because it implies a specific mechanism, but 'capacity' will do. Kant is said to focus specifically on beauty, whereas modern aestheticians have a broader view of the type of subject matter.
Literary meaning emerges in comparisons, and tradition shows which comparisons are relevant [Scruton]
     Full Idea: We must discover the meanings that emerge when works of literature are experience in relation to each other. ...The importance of tradition is that it denotes - ideally, at least - the class of relevant comparisons.
     From: Roger Scruton (Public Text and Common Reader [1982], p.27)
     A reaction: This is a nice attempt to explain why we all agree that a thorough education in an art is an essential prerequisite for good taste. Some people (e.g. among the young) seem to have natural good taste. How does that happen?
21. Aesthetics / A. Aesthetic Experience / 4. Beauty
Maybe 'beauty' is too loaded, and we should talk of fittingness or harmony [Scruton]
     Full Idea: Maybe we can understand the 'beauty' of a building better if we describe it in another and less loaded way, as a form of fittingness or harmony.
     From: Roger Scruton (Beauty: a very short introduction [2011], 1)
     A reaction: Almost everyone accepts the word 'beauty' for some things, such as a beautiful face, or goal, or steak. I remember a female interviewer writing that, reluctantly, the only appropriate word she could find for Nureyev's face was 'beautiful'.
Beauty shows us what we should want in order to achieve human fulfilment [Scruton]
     Full Idea: Beauty speaks to us of human fulfilment: not of things that we want, but of things that we ought to want, because human nature requires them. Such, at least, is my belief.
     From: Roger Scruton (Beauty: a very short introduction [2011], 7)
     A reaction: I'm not sure how this works with a beautiful natural landscape. And what should I see that I ought to desire after viewing a great Rembrandt self-portrait? That I don't want to end up looking as bleak as that? Hm. Lofty words.
Beauty is rationally founded, inviting meaning, comparison and self-reflection [Scruton]
     Full Idea: Beauty is rationally founded; it challenges us to find meaning in its object, to make critical comparisons, and to examine our own lives and emotions in the light of what we find.
     From: Roger Scruton (Beauty: a very short introduction [2011], 9)
     A reaction: This is the Kantian tradition, and I'm not finding it very persuasive. It seems to place the value of beauty in what we do with it afterwards, and he seems to make beauty a necessary stepping stone to virtue. I see beauty as more sui generis.
21. Aesthetics / A. Aesthetic Experience / 5. Natural Beauty
Natural beauty reassures us that the world is where we belong [Scruton]
     Full Idea: The experience of natural beauty is not a sense of 'how nice!' or 'how pleasant!' It contains a reassurance that this world is a right and fitting place to be - a home in which our human powers and prospects find confirmation.
     From: Roger Scruton (Beauty: a very short introduction [2011], 2)
     A reaction: To call it a 'reassurance' and 'confirmation' sounds like theism, anthropomorphism, or the pathetic fallacy. That said, this is certainly a heart-warming idea, and hence must contain a grain of truth.
21. Aesthetics / B. Nature of Art / 4. Art as Expression
Romantics say music expresses ideas, or the Will, or intuitions, or feelings [Scruton]
     Full Idea: According to the Romantic theory music was an expression of something, of an idea (Hegel), of the Will (Schopenhauer), of 'intuitions' (Croce), or of feelings (Collingwood).
     From: Roger Scruton (The Nature of Musical Expression [1981], p.54)
     A reaction: Deryck Cooke was the culmination of music as expression of feeling, and Stravinsky was the greatest rebel against the whole idea of expression in music. You can set out to create interesting music which does or does not grab the emotions.
Croce says art makes inarticulate intuitions conscious; rival views say the audience is the main concern [Scruton]
     Full Idea: The Croce model is of an inarticulate inner state (an 'intuition') becoming articulate and conscious through artistic expression. The rival model is fitting thing together so as to create links which resonate in the audience's feelings.
     From: Roger Scruton (Beauty: a very short introduction [2011], 5)
     A reaction: The first model tells you nothing about how the artist imagines the audience reacting. The second model tells you nothing about what matters personally to the artist. A good theory must do both!
Reference without predication is the characteristic of expression [Scruton]
     Full Idea: Characteristic of expression is the presence of 'reference' without predication.
     From: Roger Scruton (Representation in Music [1976], p.71)
     A reaction: This echoes (in linguistic terms) Kant's thought that art is 'purposive without purpose'. The remark is comfortable in an essay on music, but it gets more tricky when the topic is literature, or even representational painting.
21. Aesthetics / B. Nature of Art / 5. Art as Language
In literature, word replacement changes literary meaning [Scruton]
     Full Idea: In literary contexts semantically equivalent words cannot replace each other without loss of literary meaning.
     From: Roger Scruton (Public Text and Common Reader [1982], p.25)
     A reaction: The notion of 'literary meaning' is not a standard one, and is questionable whether 'meaning' is the right word, given that a shift in word in a poem is as much to do with sound as with connotations.
If music refers to love, it contains no predication, so it is expression, not language [Scruton]
     Full Idea: If a passage carries a reference to love, we are not told what it says about love. And to speak of language with 'reference' but no predication is simply to misuse the word. We leave the realm of representation and enter that of expression.
     From: Roger Scruton (Representation in Music [1976], p.63-4)
     A reaction: This is a beautifully simple objection to the idea (associated with Nelson Goodman) that art is a language. Though what an 'expression' of something amounts to I am not quite sure.
21. Aesthetics / B. Nature of Art / 8. The Arts / a. Music
Music is not representational, since thoughts about a subject are never essential to it [Scruton]
     Full Idea: Music is not representational, since thoughts about a subject are never essential to the understanding of music.
     From: Roger Scruton (Representation in Music [1976], p.74)
     A reaction: I would not have thought that many people thought music was representational, but Scruton particularly mentions passages in opera that seem to pick up aspects of the story. Do even bell sounds not represent bells?
21. Aesthetics / C. Artistic Issues / 1. Artistic Intentions
Without intentions we can't perceive sculpture, but that is not the whole story [Scruton]
     Full Idea: A person for whom it made no difference whether a sculpture was carved by wind and rain or by human hand would be unable to interpret or perceive sculptures - even though the interpretation of sculpture is not the reading of an intention.
     From: Roger Scruton (Public Text and Common Reader [1982], p.15)
     A reaction: Scruton compares it to the role of intention in language, where there is objective meaning, even though intention is basic to speech.
21. Aesthetics / C. Artistic Issues / 3. Artistic Representation
In aesthetic interest, even what is true is treated as though it were not [Scruton]
     Full Idea: In aesthetic interest, even what is true is treated as though it were not.
     From: Roger Scruton (Public Text and Common Reader [1982], p.18)
     A reaction: A nice aphorism. I always feel uncomfortable reading novels about real people, although the historical Macbeth doesn't bother me much. Novels are too close to reality. Macbeth didn't speak blank verse.
21. Aesthetics / C. Artistic Issues / 4. Emotion in Art
Expressing melancholy is a good thing, but arousing it is a bad thing [Scruton]
     Full Idea: To describe a piece of music as expressive of melancholy is to give a reason for listening to it; to describe it as arousing or evoking melancholy is to give a reason for avoiding it.
     From: Roger Scruton (The Nature of Musical Expression [1981], p.49)
     A reaction: Expressing sexual desire, while avoiding arousing it, is the nice challenge for a particular type of art. Would Scruton say that expressing joy is a good thing, but arousing it is bad? It is a nice observation, though.
21. Aesthetics / C. Artistic Issues / 5. Objectivism in Art
We can be objective about conventions, but love of art is needed to understand its traditions [Scruton]
     Full Idea: An historian can elucidate convention while having no feeling for the art that exploits it; whereas an understanding of tradition is reserved for those with the critical insight which comes from the love of art, both past and present.
     From: Roger Scruton (Public Text and Common Reader [1982], p.24)
     A reaction: This aesthetic observation is obviously close to Scruton's well-known conservatism in politics. I am doubtful whether the notion of 'tradition' can stand up to close examination, though we all know roughly what he means.
22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / a. Preconditions for ethics
All moral life depends ultimately on piety, which is our recognition of our own dependence [Scruton]
     Full Idea: The three forms of moral life (respect for persons, the pursuit of virtue and natural sympathy) all depend, in the last analysis, on piety, which is the deep-down recognition of our frailty and dependence.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.56)
     A reaction: MacIntyre agrees. 'Piety' is an odd word, which attempts to link the point to religious teachings. 'Dependence' seems an adequate term. But can fully independent creatures dispense with morality? I think not.
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / e. Human nature
Humans have been hunter-gatherers for 99.5% of their existence [Watson]
     Full Idea: Anthropology shows that the hunter-gathering lifestyle has occupied 99.5 per cent of the time humans have been on earth.
     From: Peter Watson (Convergence [2016], 13 'Emergence')
     A reaction: If you are trying to understand humanity, you ignore this fact at your peril. Even agriculture is only a tiny part of our history, and that only disappeared as a major human activity (in many nations) in the last hundred years.
22. Metaethics / B. Value / 1. Nature of Value / f. Ultimate value
Beauty (unlike truth and goodness) is questionable as an ultimate value [Scruton]
     Full Idea: The status of beauty as an ultimate value is questionable, in the way that the status of truth and goodness are not.
     From: Roger Scruton (Beauty: a very short introduction [2011], 1)
     A reaction: We suspect that a love of beauty may be a bit parochial, where it is hard to conceive of living creatures anywhere in the cosmos who don't value the other two.
22. Metaethics / C. The Good / 1. Goodness / g. Consequentialism
Consequentialism emphasises value rather than obligation in morality [Scruton]
     Full Idea: According to consequentialism, the fundamental concept of morality is not obligation (deontological ethics) but value (axiological ethics).
     From: Roger Scruton (A Dictionary of Political Thought [1982], 'consequentialism')
     A reaction: These two views could come dramatically apart, in wartime, or in big ecological crises, or in a family breakup, or in religious disputes. Having identified the pair so clearly, why can we not aim for a civilised (virtuous) balance between the two?
23. Ethics / B. Contract Ethics / 1. Contractarianism
Kant's Moral Law is the rules rational beings would accept when trying to live by agreement [Scruton]
     Full Idea: We can see the Kantian 'Moral Law' as consisting precisely in those rules which rational beings would accept, when attempting to live by agreement.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.30)
     A reaction: If this combines Kantian notions of duty with the obligations of contracts, it is the core of a very powerful moral theory. See the work of Tim Scanlon. Classic problems are still the weak, animals and free riders.
23. Ethics / B. Contract Ethics / 5. Free Rider
Any social theory of morality has the problem of the 'free rider', who only pretends to join in [Scruton]
     Full Idea: Any attempt to provide a social justification of morality runs the risk of the 'free rider' - one who pretends to play the game in order to enjoy the fruits of it.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 20.6)
23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues
The modern virtues are courage, prudence, wisdom, temperance, justice, charity and loyalty [Scruton]
     Full Idea: The antique virtues of courage, prudence, wisdom, temperance and justice, amplified by Christian charity and pagan loyalty, still form the core idea of human excellence.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.33)
     A reaction: I always think sense of humour has become a key modern virtue. Where did that come from? Maybe a sense of irony is a good thing. How about efficiency (which is Plato's idea of justice!)?
23. Ethics / C. Virtue Theory / 3. Virtues / c. Justice
Only just people will drop their own self-interests when faced with an impartial verdict [Scruton]
     Full Idea: Only just people will act on the impartial verdict when their own interests conflict with it.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.61)
     A reaction: The Kantian account of the virtues. Virtues are seen in the acceptance of a range of obvious human duties. Very helpful point if one is aiming for one unified theory of morality.
23. Ethics / C. Virtue Theory / 3. Virtues / f. Compassion
Sympathy can undermine the moral order just as much as crime does [Scruton]
     Full Idea: A person who lives by sympathy may undermine the moral order as effectively as the one who lives by crime.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.54)
     A reaction: A slightly chilling remark. Presumably one should not feel too much for suffering which is deserved. What about unavoidable suffering? It is certainly important to see that some suffering is morally good (e.g. grief or remorse).
23. Ethics / C. Virtue Theory / 3. Virtues / h. Respect
Altruism is either emotional (where your interests are mine) or moral (where they are reasons for me) [Scruton]
     Full Idea: Two distinct motives go by the name of altruism: the emotions of liking, love and friendship, making another's interest automatically mine; and the moral motive of respect or considerateness, where another's interests become reasons for me, but not mine.
     From: Roger Scruton (A Dictionary of Political Thought [1982], 'altruism')
     A reaction: The second one has a strongly Kantian flavour, with its notion of impersonal duty. Virtue theorists will aspire to achieve the first state rather than the second, because good actions are then actively desired, and give pleasure to the doer.
23. Ethics / D. Deontological Ethics / 2. Duty
Membership is the greatest source of obligation [Scruton]
     Full Idea: Membership is the greatest source of obligation.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 11.2)
     A reaction: An interesting and rather Aristotelian idea. The alternative is individual debt or obligation.
That which can only be done by a callous person, ought not to be done [Scruton]
     Full Idea: That which can only be done by a callous person, ought not to be done.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.86)
     A reaction: The problem cases all arise in wartime. Ideally we want to show sympathy even when being necessarily ruthless, but in practice we send the callous ones to do the horrible deed.
23. Ethics / D. Deontological Ethics / 3. Universalisability
As soon as we drop self-interest and judge impartially, we find ourselves agreeing about conflicts [Scruton]
     Full Idea: As soon as we set our own interests aside and look on human relations with the eye of the impartial judge, we find ourselves agreeing over the rights and wrongs of any conflict.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.59)
     A reaction: A nice, and fairly plausible, defence of Kantian ethics. Maybe the UN should actually settle all disputes, instead of just peace-keeping. The idea merely describes the function of the law, and especially an independent judiciary.
23. Ethics / D. Deontological Ethics / 4. Categorical Imperative
The categorical imperative is not just individual, but can be used for negotiations between strangers [Scruton]
     Full Idea: The categorical imperative is also an instrument of negotiation and compromise between strangers, through which they can rise out of enmity and confront each other as equals.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 20.6)
23. Ethics / E. Utilitarianism / 1. Utilitarianism
Utilitarianism is wrong precisely because it can't distinguish animals from people [Scruton]
     Full Idea: It was precisely the inability of utilitarianism to explain the distinction between animals and people which led to its rejection.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.50)
     A reaction: A nice turning of the tables, rejecting the utilitarian pride in incorporating animals into their theory where others (like Kant) reject them. Yet in one respect (suffering) they are inescapably very like us.
Utilitarianism merely guides us (by means of sympathy) when the moral law is silent [Scruton]
     Full Idea: Utilitarian thinking does not replace or compete with the moral law, but guides us when the moral law is silent and only sympathy speaks.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.63)
     A reaction: If the moral law is silent, it is not quite clear why we should follow sympathy rather than contempt. There is the well-known danger here of the moral law turning out to lack content.
Morality is not a sort of calculation, it is what sets the limits to when calculation is appropriate [Scruton]
     Full Idea: It is nearer the truth to see morality as setting the limits to practical reasoning, rather than being a species of it. Moral principles tell us precisely that we must go no further along the path of calculation.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.52)
     A reaction: Well said. If you are assessing whether an act of vicious brutality is required, you have probably already gone morally astray. It is not hard, though, to think of counterexamples, especially in wartime.
Utilitarianism says we can't blame Stalin yet, but such a theory is a sick joke [Scruton]
     Full Idea: Stalin and Hitler justified their actions in utilitarian terms, ..and no one can accuse them, for who knows what the long-term effects of their actions might be? But a morality which can't pass final judgement on Hitler or Stalin is a kind of sick joke.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.52)
     A reaction: A powerful argument against simplistic consequentialism. We can judge an action at any time, even beforehand, and that must be part of morality, which can't just observe the unfolding consequences.
24. Political Theory / A. Basis of a State / 3. Natural Values / c. Natural rights
Allegiance is prior to the recognition of individual rights [Scruton]
     Full Idea: Personally I regard allegiance, in the manner of Hegel, as prior to the recognition of individual rights.
     From: Roger Scruton (Short History of Modern Philosophy [1981], Bibliog)
     A reaction: Scruton notoriously generates rather right-wing views from this basis, but it is also the basis of communitarianism, which can take a softer form. It seems to me self-evident that rights cannot be the prime concept in a society. What society?
The idea of a right seems fairly basic; justice may be the disposition to accord rights to people [Scruton]
     Full Idea: The idea of a right seems to be as basic as any other; we might even define justice in terms of it, as the disposition to accord to every person his rights.
     From: Roger Scruton (A Dictionary of Political Thought [1982], 'rights')
     A reaction: I am inclined to think that a set of fairly pure values (such as equality, kindness, sympathy, respect) must be in place before the idea of a right would occur to anyone. Aristotle has a powerful moral sense, but rights for slaves don't cross his mind.
24. Political Theory / B. Nature of a State / 2. State Legitimacy / c. Social contract
The benefits of social freedom outweigh the loneliness, doubt and alienation it brings [Scruton]
     Full Idea: While the goods of freedom, such as rights, property, education and prosperity, can be obtained only at a price - the price of loneliness, doubt and alienation - it is a price worth paying.
     From: Roger Scruton (Upon Nothing: Swansea lecture [1993])
     A reaction: A striking way for a liberal-conservative to confront the accusations of the marxists - by conceding a lot of their criticisms, but living with them. I still don't see why we shouldn't aspire to have both.
24. Political Theory / D. Ideologies / 3. Conservatism
Allegiance is fundamental to the conservative view of society [Scruton]
     Full Idea: Conservatives have made the concept of allegiance, conceived as a power, fundamental to their description of the experience of society
     From: Roger Scruton (A Dictionary of Political Thought [1982], 'allegiance')
     A reaction: This provokes the famous slogan of "My country - right or wrong!" However, the issue here is not going to be decided by a consequentialist analysis, but by a view a of human nature. I think I would want to carefully prise allegiance apart from loyalty.
So-called 'liberation' is the enemy of freedom, destroying the very structures that are needed [Scruton]
     Full Idea: The promise of 'liberation' has always been the enemy of freedom - in 1968 as much as in 1789 and 1917. Its first desire, and its only policy, is to destroy the institutions and traditions (the 'structures') which make freedom durable.
     From: Roger Scruton (Upon Nothing: Swansea lecture [1993], p.9)
     A reaction: There is a dilemma, though, if your legal system is corrupt. Far too many political attitudes are formed because of high-profile spectacular cases, instead of looking at daily routines. The latter might make a corrupt legal system still worth saving.
24. Political Theory / D. Ideologies / 5. Democracy / d. Representative democracy
Modern democracy is actually elective oligarchy [Watson]
     Full Idea: What we regard as democracy in the twenty-first century is actually elective oligarchy.
     From: Peter Watson (Ideas [2005], Ch.06)
     A reaction: Even dictatorships want to be called 'democracies'. The modern system is a bit of a concession to Plato, and he would probably have preferred it to his system, because at least the rulers tend to be more educated than the direct assembly.
24. Political Theory / D. Ideologies / 5. Democracy / f. Against democracy
Democrats are committed to a belief and to its opposite, if the majority prefer the latter [Scruton]
     Full Idea: The paradox of democracy (emphasised by Rousseau) is that I am compelled by my belief in democracy to embrace conflicting - perhaps even contradictory - opinions. If I believe A, and the majority vote for B, I am committed to enacting them both.
     From: Roger Scruton (A Dictionary of Political Thought [1982], 'paradox of democracy')
     A reaction: The paradox would have to be resolved by qualifying what exactly one is committed to by being a democrat. I would say I am committed to the right of my opponents to enact a policy with which I disagree.
24. Political Theory / D. Ideologies / 6. Liberalism / a. Liberalism basics
Liberals focus on universal human freedom, natural rights, and tolerance [Scruton, by PG]
     Full Idea: Liberalism believes (roughly) in the supremacy of the individual, who has freedom and natural rights; it focuses on human, not divine affairs; it claims rights and duties are universal; and it advocates tolerance in religion and morality.
     From: report of Roger Scruton (A Dictionary of Political Thought [1982], 'liberalism') by PG - Db (ideas)
     A reaction: I find it hard to disagree with these principles, but the upshot in practice is often an excessive commitment to freedom and tolerance, because people fail to realise the subtle long-term erosions of society that can result.
25. Social Practice / C. Rights / 1. Basis of Rights
A right is a power which is enforced in the name of justice [Scruton]
     Full Idea: Rights are enforced in the name of justice, whereas power is enforced come what may.
     From: Roger Scruton (Short History of Modern Philosophy [1981], Ch.14)
     A reaction: Presumably rights can be claimed as well as enforced, and the notion of a natural right is at least a discussable concept, as in the 'right' of self-defence. Scruton offers us a very right-wing definition of rights.
25. Social Practice / D. Justice / 2. The Law / d. Legal positivism
For positivists law is a matter of form, for naturalists it is a matter of content [Scruton]
     Full Idea: For the positivist, law is law by virtue of its form; for the naturalist, by virtue of its content.
     From: Roger Scruton (A Dictionary of Political Thought [1982], 'law')
     A reaction: Clearly a perverse and 'unnatural' social rule (backed by government and implied force) is a 'law' in some sense of the word. It is hard to see how you could gain social consensus for a law if it didn't appear in some way to be 'natural justice'.
25. Social Practice / F. Life Issues / 3. Abortion
The issue of abortion seems insoluble, because there is nothing with which to compare it [Scruton]
     Full Idea: The issue of abortion is intractable, partly because of the absence of any other case to which it can be assimilated.
     From: Roger Scruton (A Dictionary of Political Thought [1982], 'abortion')
     A reaction: This is the legalistic approach to the problem, which always looks for precedents and comparisons. All problems must hav solutions, though (mustn't they?). The problem, though, is not the value of the foetus, but the unique form of 'ownership'.
25. Social Practice / F. Life Issues / 5. Sexual Morality
Prostitution is wrong because it hardens the soul, since soul and body are one [Scruton]
     Full Idea: The condemnation of prostitution was not just puritan bigotry; it was a recognition of a profound truth, that you and your body are not two things but one, and by selling the body you harden your soul.
     From: Roger Scruton (Beauty: a very short introduction [2011], 7)
     A reaction: No one, I imagine, who condones or even enthuses about prostitution would hope that their own daughter followed the profession, so there is something wrong with it. But must an enthusiastic and cheerful prostitute necessarily have a hard soul?
25. Social Practice / F. Life Issues / 6. Animal Rights
Animals command our sympathy and moral concern initially because of their intentionality [Scruton]
     Full Idea: It seems to me that the concept of intentionality introduces the first genuine claim of animals upon our sympathies and our moral concern.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.16)
     A reaction: Good. If one's approach to morality is Humean (via sympathy) this seems right. Utilitarianism bases animal rights on qualia (pleasures and pains).
Letting your dog kill wild rats, and keeping rats for your dog to kill, are very different [Scruton]
     Full Idea: There is a difference between the person who allows his terrier to kill wild rats, and the person who keeps tame rats for his terrier to kill.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.87)
     A reaction: There are areas in the middle, where I encourage pheasants to breed 'wild' on my land. The purchase of a Rottweiller also tests the moral boundaries here.
Many of the stranger forms of life (e.g. worms) interest us only as a species, not as individuals [Scruton]
     Full Idea: Most of the stranger forms of life (worms, fleas, locusts etc.) are not really suitors for our moral concern, and interest us primarily as species, and only rarely as individuals.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.13)
     A reaction: Interesting, but that seems to reflect on us, rather than cutting nature at the joints. As soon as you look closely, you recognise an individual rather than a member of a species.
An animal has individuality if it is nameable, and advanced animals can respond to their name [Scruton]
     Full Idea: An animal has acquired individuality if the gift of a proper name seems appropriate, the high point being reached with animals such as dogs which actually respond to their own name.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.39)
     A reaction: Interesting, even though it is rather chauvinistic. I might name the fleas in my circus, but regard a whole section of the human race as indistinguishable and not worth naming.
I may avoid stepping on a spider or flower, but fellow-feeling makes me protect a rabbit [Scruton]
     Full Idea: I instinctively recoil from stepping on a spider or a forget-me-knot in my path, but neither of these responses expresses the fellow-feeling that forbids me to step on a rabbit or a mouse.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.41)
     A reaction: It is fellow-feeling that makes us prefer mammals to reptiles. It seems wrong to build a moral system purely on empathy, because psychopaths don't even empathise with nice human beings. Externalism in morality.
Lucky animals are eaten by large predators, the less lucky starve, and worst is death by small predators [Scruton]
     Full Idea: Lucky animals die in the jaws of a large predator; predators themselves are less lucky, when they die of lingering starvation; least fortunate are those killed by smaller creatures, such as maggots and bacteria.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.43)
     A reaction: A nice insight, even if it does slide into claiming that we are simply large predators, and that therefore fox-hunting is a virtue…
We can easily remove the risk of suffering from an animal's life, but we shouldn't do it [Scruton]
     Full Idea: It is easy to remove the risk of suffering from an animal's life, but the result is not a life which an animal should lead.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.44)
     A reaction: I'm not clear where the "should" derives from here. You can't save them all, and large interventions would destroy the ecosystem. But should we never, say, put a victim out of its misery?
Sheep and cattle live comfortable lives, and die an enviably easy death [Scruton]
     Full Idea: Sheep and beef cattle live a quiet and comfortable life among their companions, and are despatched in ways which human beings, if they are rational, must surely envy.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.81)
     A reaction: No rational person could envy a premature death, and we don't wait for cattle to be old before eating them. A quick death is little consolation for being murdered, and many people would prefer a slower death (without agony, of course).
Concern for one animal may harm the species, if the individual is part of a bigger problem [Scruton]
     Full Idea: Too much concern for individual animals may in fact harm the species, by promoting diseased or degenerate members, or preventing population control.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.87)
     A reaction: Okay till we reach human beings, where this principle won't go away, even if further principles about personhood, rationality and deep sympathy enter the picture. We can't be utilitarian about animals, and something else about humans.
Animals are outside the community of rights, but we still have duties towards them [Scruton]
     Full Idea: Animals exist outside the web of reciprocal rights and obligations, created by dialogue, but because they have no rights it does not mean that we have no duties towards them.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.97)
     A reaction: The modern Kantian view of animals, though Kant struggled to show why we might have any duties to animals. Is mere compassion enough to produce a duty, or is it a luxurious indulgence of our nature?
We favour our own animals over foreign ones because we see them as fellow citizens [Scruton]
     Full Idea: We don't give help to British animals (through the RSPCA) rather than foreign animals because of their nearness or needs, but because of our sense of them as fellow citizens.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.104)
     A reaction: A bit strong. It may, in fact, be because we look after them the way we look after the rest of our property. Even Kantians can be sentimental sometimes.
Brutal animal sports are banned because they harm the personality of the watcher [Scruton]
     Full Idea: Dog-fights and bear-baiting are naturally forbidden by law, because they threaten the personality of those who attend them.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.107)
     A reaction: Hm. If this is so, it is mainly because it takes place in a closed pen, where we can get a close look at the brutality and blood. It could be said to be more honest than hunting with gun or hounds. 'Go on eyes, look your worst'.
Many breeds of animals have needs which our own ancestors planted in them [Scruton]
     Full Idea: Many breeds of animals have needs which our own ancestors planted in them.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.75)
     A reaction: He is talking about race horses and St Bernards. This doesn't avoid the moral dilemma, because we could race horses die out if we thought we had created a bad life for them.
Introducing a natural means of controlling animal population may not be very compassionate [Scruton]
     Full Idea: It is hard to believe that those who would introduce wolves as a means of controlling the deer population have much sympathy for deer.
     From: Roger Scruton (Animal Rights and Wrongs [1996], p.91)
     A reaction: Good point. If we assume that culling is required at all, then the decisive human actions which shock us on television may be nicer than the natural deaths that occur during the night.
26. Natural Theory / A. Speculations on Nature / 1. Nature
Greek philosophers invented the concept of 'nature' as their special subject [Watson]
     Full Idea: Greek philosophers may have invented the concept of 'nature' to underline their superiority over poets and religious leaders.
     From: Peter Watson (Ideas [2005], Ch.06)
     A reaction: Brilliant. They certainly wrote a lot of books entitled 'Peri Physis' (Concerning Nature), and it was the target of their expertise. A highly significant development, along with their rational methods. Presumably Socrates extends nature to include ethics.
26. Natural Theory / C. Causation / 1. Causation
'Cause' used to just mean any valid explanation [Scruton]
     Full Idea: Traditionally (before Leibniz and Spinoza) the world 'cause' signified any valid explanation.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 14)
26. Natural Theory / C. Causation / 7. Eliminating causation
The Uncertainty Principle implies that cause and effect can't be measured [Watson]
     Full Idea: The Uncertainty Principle implied that in the subatomic world cause and effect could never be measured.
     From: Peter Watson (Convergence [2016], 05 'Against')
     A reaction: The fact that it can't be measured does not, presumably, entail that it doesn't exist. Physicists seem to ignore causation, rather than denying it. Can causation be real if it only exists at the macro-level, as an emergent phenomenon?
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / a. Electrodynamics
The interference of light through two slits confirmed that it is waves [Watson]
     Full Idea: Thomas Young in 1803 confirmed the idea of Huyghens that light is waves, showing how light passing through two slits produces an interference pattern that resembles water waves sluicing through two slits.
     From: Peter Watson (Convergence [2016], 04 'Conception')
     A reaction: The great puzzle emerges when it also turns out to be quantised particles.
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / c. Electrons
Electrons rotate in hyrogen atoms 10^13 times per second [Watson]
     Full Idea: In the hydrogen atom the electron rotates some 10,000 billion times per second.
     From: Peter Watson (Convergence [2016], 18 'Evolutionary')
     A reaction: That's an awful lot. Is it at the speed of light?
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / d. Quantum mechanics
Quantum theory explains why nature is made up of units, such as elements [Watson]
     Full Idea: Planck's quantum idea explained so much, including the observation that the chemical world is made up of discrete units - the elements. Discrete elements implied fundamental units of matter that were themselves discrete (as Dalton had said).
     From: Peter Watson (Convergence [2016], 4 'Intro')
     A reaction: The atomic theory was only finally confirmed by Einstein in 1905. This idea implies that the very lowest level of all must have distinct building blocks, but so far we have got down to 'fields', which seem to be a sort of 'foam'.
27. Natural Reality / B. Modern Physics / 4. Standard Model / a. Concept of matter
Only four particles are needed for matter: up and down quark, electron, electron-neutrino [Watson]
     Full Idea: We need twelve particles in the master equation of the standard model, but it is necessary to have only four to build a universe (up and down quarks, the electron and the electron neutrino (or lepton). The existence of the others is 'a bit of a mystery'.
     From: Peter Watson (Convergence [2016], 11 'First Three')
27. Natural Reality / C. Space / 4. Substantival Space
Measuring space requires no movement while I do it [Scruton]
     Full Idea: I can measure the length of something only if I know that it has not moved between the moment when I locate one end of it and the moment when I locate the other.
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 25.3)
     A reaction: A nice example of how even simple propositions have many presuppositions.
27. Natural Reality / F. Chemistry / 1. Chemistry
The shape of molecules is important, as well as the atoms and their bonds [Watson]
     Full Idea: Pauling showed that the architecture - the shape of molecules was relevant (as well as the bonds). This meant that molecules were just as important as atoms in the understanding of matter. Molecules were not just the sum of their parts.
     From: Peter Watson (Convergence [2016], 05 'Three')
     A reaction: If Aristotle struggled to understand matter, then so should modern philosophers. This involves thermodynamics and chemistry, as well as quantum theory.
27. Natural Reality / G. Biology / 2. Life
In 1828 the animal substance urea was manufactured from inorganic ingredients [Watson]
     Full Idea: In 1828 Wöhler, in an iconic experiment, had manufactured an organic substance, urea, hitherto the product solely of animals, out of inorganic materials, and without any interventions of vital force.
     From: Peter Watson (Convergence [2016], 06 'Inorganic')
     A reaction: For reductionists like me, the gradual explanation of life in inorganic terms is the great role model of explanation. I take it for granted that the human mind will go the same way, despite partisan resistance from a lot of philosophers.
Information is physical, and living can be seen as replicating and preserving information [Watson]
     Full Idea: In passing information, physical changes take place, and information is thus physical. On this account, the act of living can be seen as replicating and preserving the information that a living body is comprised of.
     From: Peter Watson (Convergence [2016], 17 'Dreams')
     A reaction: [He emphasises 'the act' of living, rather than a life]
27. Natural Reality / G. Biology / 3. Evolution
DNA mutation suggests humans and chimpanzees diverged 6.6 million years ago [Watson]
     Full Idea: The basic mutation rate in DNA is 0.71 percent per million years. Working back from the present difference between human and chimpanzee DNA, we arrive at 6.6 million years ago for their divergence.
     From: Peter Watson (Ideas [2005], Ch.01)
     A reaction: This database is committed to evolution (a reminder that even databases have commitments), and so facts of this kind are included, even though they are not strictly philosophical. All complaints should be inwardly digested and forgotten.
28. God / B. Proving God / 2. Proofs of Reason / b. Ontological Proof critique
'Existence' is not a predicate of 'man', but of the concept of man, saying it has at least one instance [Scruton]
     Full Idea: When I say that a man exists, Frege argues, I do not predicate existence of a man, but rather of the concept man: I say the concept has at least one instance (and existence is a predicate of predicates).
     From: Roger Scruton (Modern Philosophy:introduction and survey [1994], 26.2)
28. God / C. Attitudes to God / 4. God Reflects Humanity
During the rise of civilizations, the main gods changed from female to male [Watson]
     Full Idea: Around the time of the rise of the first great civilizations, the main gods changed sex, as the Great Goddess, or a raft of smaller goddesses, were demoted and male gods took their place.
     From: Peter Watson (Ideas [2005], Ch.05)
     A reaction: Why? War, perhaps?
29. Religion / A. Polytheistic Religion / 3. Hinduism
Hinduism has no founder, or prophet, or creed, or ecclesiastical structure [Watson]
     Full Idea: Traditional Hinduism has been described as more a way of living than a way of thought; it has no founder, no prophet, no creed and no ecclesiastical structure.
     From: Peter Watson (Ideas [2005], Ch.05)
     A reaction: This contrast strikingly with all later religions, which felt they had to follow the Jews in becoming a 'religion of the book', with a sacred text, and hence a special status for the author(s) of that text.
29. Religion / B. Monotheistic Religion / 2. Judaism
Monotheism was a uniquely Israelite creation within the Middle East [Watson]
     Full Idea: No one questions the fact that monotheism was a uniquely Israelite creation within the Middle East.
     From: Peter Watson (Ideas [2005], Ch.07)
     A reaction: I take the Middle East to exclude Greece, where they were developing similar ideas. Who knows?
Modern Judaism became stabilised in 200 CE [Watson]
     Full Idea: The Judaism we know today didn't become stabilized until roughly 200 CE.
     From: Peter Watson (Ideas [2005], Ch.07)
     A reaction: By that stage it would have been subject to the influences of Christianity, ancient Greek philosophy, and neo-Platonism.
The Israelites may have asserted the uniqueness of Yahweh to justify land claims [Watson]
     Full Idea: Archaeology offers datable figures that seem to support the idea that the Israelites of the 'second exile' period converted Yahweh into a special, single God to justify their claims to the land.
     From: Peter Watson (Ideas [2005], Ch.07)
     A reaction: The implications for middle eastern politics of this wicked observation are beyond the remit of a philosophy database.
29. Religion / B. Monotheistic Religion / 3. Zoroastrianism
The Gathas (hymns) of Zoroastrianism date from about 1000 BCE [Watson]
     Full Idea: The Gathas, the liturgical hymns that make up the 'Avesta', the Zoroastrian canon, are very similar in language to the oldest Sanskrit of Hinduism, so they are not much younger than 1200 BCE.
     From: Peter Watson (Ideas [2005], Ch.05)
     A reaction: This implies a big expansion of religion before the well-known expansion of the sixth century BCE.
Zoroaster conceived the afterlife, judgement, heaven and hell, and the devil [Watson]
     Full Idea: Life after death, resurrection, judgement, heaven and paradise, were all Zoroastrian firsts, as were hell and the devil.
     From: Peter Watson (Ideas [2005], Ch.05)
     A reaction: He appears to be the first 'prophet'.
29. Religion / B. Monotheistic Religion / 4. Christianity / a. Christianity
Jesus never intended to start a new religion [Watson]
     Full Idea: Jesus never intended to start a new religion.
     From: Peter Watson (Ideas [2005], Ch.08)
     A reaction: An intriguing fact, which makes you wonder whether any of the prophets ever had such an intention.
Paul's early writings mention few striking episodes from Jesus' life [Watson]
     Full Idea: Paul's writings - letters mainly - predate the gospels and yet make no mention of many of the more striking episodes that make up Jesus' life.
     From: Peter Watson (Ideas [2005], Ch.07)
     A reaction: This is not proof of anything, but it seems very significant if we are trying to get at the facts about Jesus.
29. Religion / C. Spiritual Disciplines / 1. Confucianism
Confucius revered the spiritual world, but not the supernatural, or a personal god, or the afterlife [Watson]
     Full Idea: Confucius was deeply religious in a traditional sense, showing reverence towards heaven and an omnipresent spiritual world, but he was cool towards the supernatural, and does not seem to have believed in either a personal god or an afterlife.
     From: Peter Watson (Ideas [2005], Ch.05)
     A reaction: The implication is that the spiritual world was very remote from us, and beyond communication. Sounds like deism.
29. Religion / C. Spiritual Disciplines / 2. Taoism
Taoism aims at freedom from the world, the body, the mind, and nature [Watson]
     Full Idea: Underlying Taoism is a search for freedom - from the world, from the body, from the mind, from nature.
     From: Peter Watson (Ideas [2005], Ch.05)
     A reaction: Of all the world's religions, I think Taoism is the most ridiculouly misconceived.
29. Religion / D. Religious Issues / 1. Religious Commitment / a. Religious Belief
The three basic ingredients of religion are: the soul, seers or priests, and ritual [Watson]
     Full Idea: Anthropologist distinguish three requirements for religion: a non-physical soul which can survive death; individuals who can receive supernatural inspiration; and rituals which can cause changes in the present world.
     From: Peter Watson (Ideas [2005], Ch.01)
     A reaction: The latter two, of course, also imply belief in supernatural powers.
29. Religion / D. Religious Issues / 2. Immortality / a. Immortality
In ancient Athens the souls of the dead are received by the 'upper air' [Watson]
     Full Idea: An official Athenian war monument of 432 BCE says the souls of the dead will be received by the aither (the 'upper air'), though their bodies remain on earth.
     From: Peter Watson (Ideas [2005], Ch.05)
     A reaction: Intriguing. Did they think anything happened when they got there? There are also ideas about Hades, and the Isles of the Blessed floating around.