Combining Philosophers

All the ideas for Paul Ricoeur, Harr,R./Madden,E.H. and George Berkeley

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172 ideas

1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / e. Philosophy as reason
Like disastrous small errors in navigation, small misunderstandings can wreck intellectual life [Harré/Madden]
     Full Idea: Just as the tiniest error in navigation may lead to a landfall even on the wrong continent, so the acceptance of apparently innocuous principles can lead to doctrines which, if accepted, would render intellectual life impossible.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.I.A)
     A reaction: If one lived life by an axiom system, and one of the axioms was a bit off kilter, then this idea would be a powerful one. Note that it is only 'intellectual' life that is screwed up, but even there a plurality of ideas keep correcting one another.
1. Philosophy / E. Nature of Metaphysics / 6. Metaphysics as Conceptual
Philosophy devises and assesses conceptual schemes in the service of worldviews [Harré/Madden]
     Full Idea: In our view the task of a philosopher is to devise and critically assess conceptual schemes in the service of some overall vision of the world.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.I.B)
     A reaction: This makes theology just as genuinely a branch of philosophy as their scientific essentialism. Is there any sort of philosophy, then, which is not 'in the service' of some independent worldview? Interesting. Note 'devise', as well as 'assess'.
1. Philosophy / F. Analytic Philosophy / 4. Conceptual Analysis
Analysis of concepts based neither on formalism nor psychology can arise from examining what we know [Harré/Madden]
     Full Idea: Adequate accounts of those concepts which are neither purely formal nor simply psychological can be achieved by attention to ....the content of our knowledge, content which goes beyond the reports of immediate experience.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.I.A)
     A reaction: I like this one. Most proponents of analysis are either bogged down in trying to reduce all of our talk to formal logic, or else they think that they are just analysing how we think. It's neither, because the concepts arise from the world.
1. Philosophy / F. Analytic Philosophy / 6. Logical Analysis
Humeans see analysis in terms of formal logic, because necessities are fundamentally logical relations [Harré/Madden]
     Full Idea: The Humean view has led philosophers to suppose that their task is to provide an analysis of key concepts and relations wholly in terms drawn from formal logic, since relations of necessity are, in their view, fundamentally logical relations
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.I.A)
     A reaction: A very sharp observation about why logic has become central to contemporary philosophy. As far as I can see, logic steadily increases its dominance, to the point where ordinary metaphysical thought is being squeezed out.
1. Philosophy / G. Scientific Philosophy / 2. Positivism
Positivism says science only refers to immediate experiences [Harré/Madden]
     Full Idea: Positivism is the doctrine that the content of scientific propositions is exhausted by what can be immediately experienced.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 2.I)
     A reaction: The simple thing missing from positivism is inference to the best explanation. Also, if you actually rule out other propositions as 'meaningless', you rule out speculation, which would certainly cripple science.
1. Philosophy / H. Continental Philosophy / 3. Hermeneutics
Hermeneutics of tradition is sympathetic, hermeneutics of suspicion is hostile [Ricoeur, by Mautner]
     Full Idea: Ricoeur distinguishes a hermeneutics of tradition (e.g. Gadamar), which interprets sympathetically looking for hidden messages, and a hermeneutics of suspicion (e.g. Nietzsche, Freud) which sees hidden drives and interests.
     From: report of Paul Ricoeur (works [1970]) by Thomas Mautner - Penguin Dictionary of Philosophy p.249
     A reaction: Obviously the answer is somewhere between the two. Nietzsche's suspicion can be wonderful, but Freud's can seem silly (e.g. on Leonardo). On the whole I am on the 'tradition' side, because great thinkers can rise above their culture (on a good day).
2. Reason / D. Definition / 1. Definitions
Logically, definitions have a subject, and a set of necessary predicates [Harré/Madden]
     Full Idea: From a logical point of view all definitions look exactly alike, that is, they contain a logical subject and a set of predicates which are attributed of necessity to that subject.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.IV)
3. Truth / C. Correspondence Truth / 3. Correspondence Truth critique
An idea can only be like another idea [Berkeley]
     Full Idea: An idea can be like nothing but an idea.
     From: George Berkeley (The Principles of Human Knowledge [1710], §08), quoted by Michael Potter - The Rise of Analytic Philosophy 1879-1930 43 'Mean'
     A reaction: I take this to be relevant to the correspondence theory, but also to be one of Berkeley's best observations. We understand ideas, but we can't map them onto the world (because they are not maps!). ...But then how is one idea like another? Hm.
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / b. Types of number
Points can be 'dense' by unending division, but must meet a tougher criterion to be 'continuous' [Harré/Madden]
     Full Idea: Points can be 'dense' by indefinitely prolonged division. To be 'continuous' is more stringent; the points must be cut into two sets, and meet the condition laid down by Boscovich and Dedekind.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: This idea goes with Idea 15274, which lays down the specification of the Dedekind Cut, which is the criterion for the real (and continuous) numbers. Harré and Madden are interested in whether time can support continuity of objects.
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / i. Reals from cuts
Points are 'continuous' if any 'cut' point participates in both halves of the cut [Harré/Madden]
     Full Idea: Divide points into left and right set. They're 'continuous' if that point is either last member of left set, and greatest lower bound of right (so no least member), or least upper bound of left set (so no last member) and first member of right set.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: The best attempt I have yet encountered to explain a Dedekind Cut for the layperson. I gather modern mathematicians no longer rely on this way of defining the real numbers.
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / k. Infinitesimals
Infinitesimals are ghosts of departed quantities [Berkeley]
     Full Idea: The infinitesimals are the ghosts of departed quantities.
     From: George Berkeley (The Analyst [1734]), quoted by David Bostock - Philosophy of Mathematics 4.3
     A reaction: [A famous phrase, but as yet no context for it]
6. Mathematics / C. Sources of Mathematics / 10. Constructivism / e. Psychologism
There is not an exclusive dichotomy between the formal and the logical [Harré/Madden]
     Full Idea: The assumption that there is an exclusive dichotomy between the formal and the psychological is, in our view, an error of enormous consequence.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.I.A)
     A reaction: I agree entirely with this, and am opposed to the Fregean view of the matter. The psychology is the bridge between the physical world and the logic. Frege had to be a platonist, so that the formalism could latch onto something.
7. Existence / A. Nature of Existence / 4. Abstract Existence
Abstract ideas are impossible [Berkeley]
     Full Idea: We have, I think, shown the impossibility of Abstract Ideas.
     From: George Berkeley (The Principles of Human Knowledge [1710], Intro §21)
     A reaction: He achieves this by an attack on universals, offering the nominalist view that there are only particulars. There seems to be a middle ground, where universals don't actually exist, but there are settled conventional abstraction, beyond particulars.
7. Existence / A. Nature of Existence / 5. Reason for Existence
I do not believe in the existence of anything, if I see no reason to believe it [Berkeley]
     Full Idea: It is to me a sufficient reason not to believe the existence of anything, if I see no reason for believing it.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.205)
     A reaction: This may just be a reasonable application of Ockham's Razor, but I fear that Berkeley painted himself into corner by demanding too many 'reasons' for everything.
7. Existence / A. Nature of Existence / 6. Criterion for Existence
I know that nothing inconsistent can exist [Berkeley]
     Full Idea: I know that nothing inconsistent can exist.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.224)
     A reaction: Fine, but the problem is to assess with confidence what is inconsistent. Human imagination seems to be the test for existence. But what else can we do?
7. Existence / B. Change in Existence / 1. Nature of Change
Humeans can only explain change with continuity as successive replacement [Harré/Madden]
     Full Idea: Given the Humean ontology, there is grave difficulty in making any sense at all of the concept of change with continuity as distinct from successive replacements.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6. Intro)
     A reaction: Hence the four-dimensionalist approach is basically Hume updated. The weird nature of time lurks behind this difficulty. If you can separate the moments of time, you can separate the bits of a continuous thing, and then ask how they relate.
7. Existence / B. Change in Existence / 4. Events / b. Events as primitive
Humeans construct their objects from events, but we construct events from objects [Harré/Madden]
     Full Idea: On our view, 'event' is to be understood in terms of the ontology of enduring things, while on the Humean view enduring things are conceived to be constructions of events.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: It has quite hard to take either objects or events, given that they seem to be amenable to analysis. I am tempted to take essences as primitive. They fix identity, endure change, bear accidental properties (including temporary intrinsics).
7. Existence / B. Change in Existence / 4. Events / c. Reduction of events
The induction problem fades if you work with things, rather than with events [Harré/Madden]
     Full Idea: By a shift from events to things we claim to make the big problem of induction tractable.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 4.II)
     A reaction: [You'll have to read their chapter to get the whole picture] The idea of basing a metaphysics on 'events' gives me the creeps, given the difficulty of individuating an event. Events are not primitive; even animals can analyse their components.
7. Existence / C. Structure of Existence / 6. Fundamentals / a. Fundamental reality
Fundamental particulars can't change [Harré/Madden]
     Full Idea: Fundamental particulars are incapable of change.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.IV)
     A reaction: I quote this in order to challenge it. If the proton can decay (which seems to be the case) maybe everything can. The fundamentals of a lawn mower eventually rust away; it may be thus with universe. What evidence could deny this?
7. Existence / C. Structure of Existence / 8. Stuff / a. Pure stuff
Hard individual blocks don't fix what 'things' are; fluids are no less material things [Harré/Madden]
     Full Idea: There is no metaphysical justification whatever for treating the solid, bounded, material object as the determiner of all thing concepts. Fluids are no less material things than are hard solid blocks.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.IV)
     A reaction: We don't tend to talk of a fluid as 'a' thing, and without distinct objects there would be virtually no structure, or interest, in nature, so what gives identity to the blocks must interest the metaphysician.
7. Existence / C. Structure of Existence / 8. Stuff / b. Mixtures
Magnetic and gravity fields can occupy the same place without merging [Harré/Madden]
     Full Idea: The magnetic and the gravitation field can occupy all the same places without merging.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.IV)
     A reaction: We can divide stuff into two classes, then, according to whether they usually merge if coextensive in space. Oil and water can be mixed, but eventually separate again.
7. Existence / D. Theories of Reality / 4. Anti-realism
Berkeley does believe in trees, but is confused about what trees are [Berkeley, by Cameron]
     Full Idea: I think that we should consider Berkeley as believing in trees; we should simply claim that he has false beliefs about what trees are.
     From: report of George Berkeley (The Principles of Human Knowledge [1710]) by Ross P. Cameron - Truthmakers, Realism and Ontology 'Realism'
     A reaction: I can be realist about spots before my eyes, or a ringing in my ears, but be (quite sensibly) unsure about what they are, so Cameron's suggestion sounds plausible.
7. Existence / D. Theories of Reality / 6. Physicalism
Gravitational and electrical fields are, for a materialist, distressingly empty of material [Harré/Madden]
     Full Idea: The region around a magnetic body, the space between earth and moon, and the vicinity of an electric cable remain obstinately and, for a materialist, distressingly empty of material.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.III)
     A reaction: Ouch, if you are a strict 'materialist'! I call myself a 'naturalist', in a hand-wavy sort of way. On materialism and determinism I remain vague.
7. Existence / D. Theories of Reality / 9. States of Affairs
Events are changes in states of affairs (which consist of structured particulars, with powers and relations) [Harré/Madden]
     Full Idea: A state of affairs consists of structures of particulars that endure (of which physical objects would be one type), the properties and powers of those particulars, and the relations obtaining among them. A common 'event' is a change in state of affairs.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: I find 'event' to be so vague, and so dependent on pragmatic interests, that it has hard to find a place for it in an ontological system. Ditto with state of affairs. They overlap. States of affairs can survive change (like a political majority).
8. Modes of Existence / B. Properties / 5. Natural Properties
Humeans see predicates as independent, but science says they are connected [Harré/Madden]
     Full Idea: The connectivity of ensembles of predicates is characteristic of natural science, while the independence of empirical predicates is the requirement of the Humean position.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.I)
     A reaction: This is yet another excellent reason for getting rid of the hyperempirical Humean view of these things. The best explanation of the world is that its ingredients are clearly not 'independent' of each other.
8. Modes of Existence / C. Powers and Dispositions / 1. Powers
Energy was introduced to physics to refer to the 'store of potency' of a moving ball [Harré/Madden]
     Full Idea: The concept of energy was introduced into physics precisely to make possible the application of the 'store of potency' paradigm in cases like the contact of billiard balls, since the moving ball is clearly an agent of change.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: I find this to be a hugely revealing little observation. For years the nature of energy has bothered me, and I have been struck by the active character of nature. I am beginning to understand the world!
Some powers need a stimulus, but others are just released [Harré/Madden]
     Full Idea: Some powerful particulars require to be stimulated before their powers are manifested. Others will manifest their powers whenever the impediments to action, the constraints, are removed.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.V)
     A reaction: Sounds nice and clear, but if gunpowder explodes at a certain temperature, how can you distinguish temperatures as the 'stimulus' ones and the 'release' ones? We just remove the constraint of low temperature.
Some powers are variable, others cannot change (without destroying an identity) [Harré/Madden]
     Full Idea: Contrasted with variable powers are those powers which cannot be diminished or augmented without loss of identity for the particular to which they are ascribed.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.I)
     A reaction: They give the example of a Deputy Sheriff's powers, as one that cannot vary. I suppose the powers of an electron are in the fixed category. Fair enough. Can a fundamental power be variable (or only 'complex' powers)?
8. Modes of Existence / C. Powers and Dispositions / 2. Powers as Basic
Scientists define copper almost entirely (bar atomic number) in terms of its dispositions [Harré/Madden]
     Full Idea: For scientists 'copper' refers to something having the properties of malleability, fusibility, ductility, electric conductivity, density 8.92, atomic weight 63.54, and atomic number 19. All but the last of these are dispositional.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.II.C)
     A reaction: This is important because it is tempting to pick the atomic number as the essence of copper, but it is the only one on the list which is structural rather than dispositional. The deep question is why that substance has those dispositions.
We explain powers by the natures of things, but explanations end in inexplicable powers [Harré/Madden]
     Full Idea: The power of particulars are always made understandable by the natures of those particulars, but finally such explanations come to rest with a power of a particular that has no explanation in the nature of that thing or bit of material.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.VII)
     A reaction: I'm glad they faced up to this matter. The question is whether the fundamental powers which are the terminus of explanation are the same sort of thing as the powers which were said to be the target for explanations. Just complex powers?
Maybe a physical field qualifies as ultimate, if its nature is identical with its powers [Harré/Madden]
     Full Idea: As the most promising candidate for entities which intrinsically qualify as ultimate because their nature is in principle identical with their powers we will offer a physical field.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.VII)
     A reaction: An electron comes fairly close to being nothing but a bundle of powers, but fields seem to have a slightly more basic role in physics, so this strikes me as a good suggestion. It meets Ladyman's mocking of the 'microbangings' view.
8. Modes of Existence / C. Powers and Dispositions / 3. Powers as Derived
Powers are not qualities; they just point to directions of empirical investigation [Harré/Madden]
     Full Idea: An attribution of a power opens up a certain direction of empirical investigation. It is not an attribution of an occult quality, because it is not a quality-attribution at all.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 5.II)
     A reaction: They seem to have a rather behaviouristic view of powers, which I am inclined to think misses how fundamental powers are. I see fundamental powers as the terminus of empirical investigation (which focuses on how powers combine).
8. Modes of Existence / C. Powers and Dispositions / 6. Dispositions / d. Dispositions as occurrent
What is a field of potentials, if it only consists of possible events? [Harré/Madden]
     Full Idea: How are we to conceive of a field of potentials when the very point of the notion is that it serves to describe what would happen at various places, and is not a description of what did or is happening?
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.III)
     A reaction: I suppose the answer is induction. If there were no events, the field would be beyond us. We infer the field from observed events, and infer possible events from the patterns of behaviour in the field, and its nature.
8. Modes of Existence / E. Nominalism / 1. Nominalism / b. Nominalism about universals
Universals do not have single meaning, but attach to many different particulars [Berkeley]
     Full Idea: There is no such thing as one precise and definite signification annexed to any general name, they all signifying indifferently a great number of particular ideas.
     From: George Berkeley (The Principles of Human Knowledge [1710], Intro §18)
     A reaction: The term 'red' may be assigned to a range of colours, but we also recognise the precision of 'that red'. For 'electron', or 'three', or 'straight', the particulars are indistinguishable.
No one will think of abstractions if they only have particular ideas [Berkeley]
     Full Idea: He that knows he has no other than particular ideas, will not puzzle himself in vain to find out and conceive the abstract idea annexed to any name.
     From: George Berkeley (The Principles of Human Knowledge [1710], Intro §24)
     A reaction: A nice point against universals. Maybe gods only think in particulars. One particular on its own could never suggest a universal. How are you going to spot patterns if you don't think in universals? Maths needs patterns.
8. Modes of Existence / E. Nominalism / 2. Resemblance Nominalism
Universals do not have any intrinsic properties, but only relations to particulars [Berkeley]
     Full Idea: Universality, so far as I can comprehend it, does not consist in the absolute, positive nature or conception of anything, but in the relation it bears to the particulars signified or represented by it.
     From: George Berkeley (The Principles of Human Knowledge [1710], Intro §15)
     A reaction: I always think it is a basic principle in philosophy that some sort of essence must precede relations (and functions). What is it about universals that enables them to have a relation to particulars?
9. Objects / A. Existence of Objects / 6. Nihilism about Objects
The good criticism of substance by Humeans also loses them the vital concept of a thing [Harré/Madden]
     Full Idea: In being properly critical about the merits of the concept of substance, ...the Humean finds he has lost the vitally important concept of a thing as well.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: This is the whole reason that Aristotle and others started talking about substances in the first place. The big mistake is to think that Aristotle believes in a thing called 'substance'. The notion is a placeholder for whatever holds a thing together.
9. Objects / B. Unity of Objects / 2. Substance / d. Substance defined
Material substance is just general existence which can have properties [Berkeley]
     Full Idea: The most accurate philosophers have no other meaning annexed to 'material substance' but the idea of being in general, together with the relative notion of its supporting accidents.
     From: George Berkeley (The Principles of Human Knowledge [1710], §17)
     A reaction: This is part of the attack on Aristotle's concept of 'substance', and is a nice way of dissolving the concept. 'Substance' will never reappear in physics, but modern philosopher have returned to it, as possibly inescapable in metaphysics.
There is no other substance, in a strict sense, than spirit [Berkeley]
     Full Idea: There is no other substance, in a strict sense, than spirit.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.257)
     A reaction: A nice clear statement of idealism. Why is he so confident of making this assertion. Note the addition, though, of 'in a strict' sense. He is presenting an epistemological claim as if it was an ontological one.
9. Objects / B. Unity of Objects / 2. Substance / e. Substance critique
A die has no distinct subject, but is merely a name for its modes or accidents [Berkeley]
     Full Idea: To me a die seems to be nothing distinct from those things which are termed its modes or accidents. And to say a die is hard, extended and square is not to attribute those qualities to a distinct subject, but only an explication of the word 'die'.
     From: George Berkeley (The Principles of Human Knowledge [1710], n 49)
     A reaction: This is apparently a reaction to Locke, and a final rejection of the medieval idea of a 'substance'. Unfortunately it leaves Berkeley with a 'bundle' view of objects (a typical empiricist account), which is even worse.
We can escape substance and its properties, if we take fields of pure powers as ultimate [Harré/Madden]
     Full Idea: The importance of the field concept (as ultimate) is that it allows us to escape from the apparently pervasive concepts of substance and its properties. A field has no substance other than its powers (or its potentials).
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.VII)
     A reaction: You can't run away from substance by only thinking about what is ultimate. Are they going to ignore separate objects? What gives them identity? Do they have any properties? What has the properties? More work needed here.
9. Objects / C. Structure of Objects / 3. Matter of an Object
The assumption that shape and solidity are fundamental implies dubious 'substance' in bodies [Harré/Madden]
     Full Idea: The assumption that shape and solidity are the fundamental mechanical qualities requires an implausible hypothesis of a substance or material filling the space of bodies.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.II.B)
     A reaction: This is 'substance' in the sense of matter, rather than in the sense of an Aristotelian essence. They defend fields (rather than particles) as the fundamentals of the physical world.
9. Objects / C. Structure of Objects / 7. Substratum
The notorious substratum results from substance-with-qualities; individuals-with-powers solves this [Harré/Madden]
     Full Idea: Chemical analysis either arrives at a qualityless substance, the notorious substratum, or is obliged to declare certain qualities primary and inexplicable. Substituting individuals-with-powers for substance-with-qualities removes these difficulties.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.II)
     A reaction: Any account gives you something as basic, and that something is always going to seem inherently and deeply mysterious. I prefer powers to substrata, but what has the powers? They like 'fields'.
9. Objects / D. Essence of Objects / 6. Essence as Unifier
In logic the nature of a kind, substance or individual is the essence which is inseparable from what it is [Harré/Madden]
     Full Idea: From the point of view of philosophical logic, the nature of a kind, or a material substance or an individual is its essence, that is, those of its qualities which are inseparable from its being that kind, that material or that individual.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.I)
     A reaction: This might be where the logical and the naturalistic notions of essence come apart. Could something retain its 'natural' essence while losing its identity, or lose its essence while retaining its identity?
9. Objects / D. Essence of Objects / 9. Essence and Properties
We can infer a new property of a thing from its other properties, via its essential nature [Harré/Madden]
     Full Idea: If we know the nature of a particular that explains its properties, powers and capacities and relates them into intelligible clusters, then we can indeed infer from some of the powers and properties to others via its essential nature.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.III)
     A reaction: This is an optimistic assertion of precisely the possibility which Locke denied in Idea 12547. This optimism is the main reason for the revival of scientific essentialism in recent years. It just seems to be true of modern science.
9. Objects / D. Essence of Objects / 15. Against Essentialism
We say the essence of particles is energy, but only so we can tell a story about the nature of things [Harré/Madden]
     Full Idea: The essential nature of matter and radiation is energy, so it is maintained, but the point of maintaining this is precisely to allow one to make use of a notion of the nature of things.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.III)
     A reaction: They are defending essentialism, but this seems to be a counterexample, of our need to postulate essences where there are none. It makes our explanations work better, but at the cost of commitment to a 'quasi-substance' (Idea 15265).
9. Objects / E. Objects over Time / 2. Objects that Change
To say something remains the same but lacks its capacities and powers seems a contradiction [Harré/Madden]
     Full Idea: Talk about particulars remaining the same and yet lacking their usual capacities and powers is at once to assert and deny that a certain object or sample of material has a given nature.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.II.C)
     A reaction: They imply that this is a contradiction, and hence impossible. So what do we say about something in which the powers fade? Do they both retain and lose their identity? Or can we separate essence from identity?? Aha!
Some individuals can gain or lose capacities or powers, without losing their identity [Harré/Madden]
     Full Idea: Some individuals to gain or lose certain capacities or powers, but do not thereby lose their identity. They still have the same nature. A drug, or photographic paper, may lose effectiveness over time.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.II.C)
     A reaction: Damn! I thought I was the first to spot this problem! I, however, take it to be much more metaphysically significant than Harré and Madden do. The question is whether those properties were essential, since they can be lost. Essential but not necessary!
A particular might change all of its characteristics, retaining mere numerical identity [Harré/Madden]
     Full Idea: Change might mean that a particular lost some or perhaps all of its previous characteristics and retained at worst only a dubious numerical identity derived from temporal continuity of the occupation of a place or continuous sequence of places.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.II)
     A reaction: If all that is left is its location, that seems like passing-away rather than change. A dead leaf retains mere numerical identity while losing its essence. A burnt-up leaf might have a location, but it hardly qualifies as a 'leaf'.
9. Objects / E. Objects over Time / 3. Three-Dimensionalism
'Dense' time raises doubts about continuous objects, so they need 'continuous' time [Harré/Madden]
     Full Idea: Since discontinuities in a dense set of temporal points lead to doubts about the existential integrity of a thing, the thing-ontology demands that a dense time be continuous.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: This seems to be a rather unequivocal assertion about a rather uncertain topic. If quanta can move in 'leaps', which appear to abolish the notion of what happens 'between' two states, who can say what objects might manage to do?
9. Objects / E. Objects over Time / 4. Four-Dimensionalism
If things are successive instantaneous events, nothing requires those events to resemble one another [Harré/Madden]
     Full Idea: If events are instantaneous time-slices of a physical thing, the persistence of the pattern is an inexplicable fact in that there is no requirement for the successive time-slices to bear any resemblance to the event previously occurring at that place.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: The Humean four-dimensional view doesn't seem to require an explanation of this (or of much else), and takes it as a brute fact that slices resemble. Something has to be a brute fact, I suppose.
9. Objects / E. Objects over Time / 8. Continuity of Rivers
Humeans cannot step in the same river twice, because they cannot strictly form the concept of 'river' [Harré/Madden]
     Full Idea: A Humean cannot step in the same river twice, not because the river is always a different river, but because he can strictly have no such concept as 'river'.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 4.II)
     A reaction: This arises from a discussion of induction. What is a Humean to make of an object which keeps changing? They only have connected impressions, and no underlying essence to hold the impressions together.
10. Modality / A. Necessity / 2. Nature of Necessity
What reduces the field of the possible is a step towards necessity [Harré/Madden]
     Full Idea: Whatever reduces the field of the possible is a step towards necessity.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.IV)
     A reaction: This is a deeply stirring idea, because it suddenly opens up a research project of narrowing the possibilities, with a stunning Holy Grail at the end of it. Sherlock Holmes said this first, of course.
10. Modality / A. Necessity / 3. Types of Necessity
There is 'absolute' necessity (implied by all propositions) and 'relative' necessity (from what is given) [Harré/Madden]
     Full Idea: In addition to absolute necessity ('p is strictly implied by ¬p'), i.e. p strictly implied by any proposition whatever, C.I. Lewis also distinguished relative necessity ('p implied by what is given or known').
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.V)
     A reaction: Once you accept this distinction you find that the 'relative' one comes in all sorts of degrees. You "have to" put more salt in this soup. (Deontic' necessity, someone on Twitter tells me!)
10. Modality / A. Necessity / 6. Logical Necessity
Logical necessity is grounded in the logical form of a statement [Harré/Madden]
     Full Idea: When the logical form of a statement is offered as the grounds for the judgement that it cannot be true we have logical necessity.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.V.B)
     A reaction: This sounds like a truth about logical necessity, but certainly not a full account of it, because contingent statements also have logical form. I can't think of any other criterion than the finding of a contradiction buried in the logical form.
10. Modality / A. Necessity / 7. Natural Necessity
Natural necessity is not logical necessity or empirical contingency in disguise [Harré/Madden]
     Full Idea: Natural necessity is neither a mere reflection of logical necessity nor a roundabout way of referring to empirical contingency.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.I.B)
     A reaction: They offer a strong defence of natural necessity, which is basic to their scientific essentialism. The key point is that they, unlike some others, are not defending metaphysical necessity about nature, but finding a different type of necessity. Good.
The relation between what a thing is and what it can do or undergo relate by natural necessity [Harré/Madden]
     Full Idea: The relation between what a thing is and what it is capable of doing and undergoing is naturally necessary.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.II.C)
     A reaction: Note that this was written in 1975, and in no way rests of Kripkean notions of rigid designation and necessary identities. Needs thought, but I take it to be an appealing proposal.
A necessity corresponds to the nature of the actual [Harré/Madden]
     Full Idea: There is a necessity corresponding to the nature of the actual.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.III.C)
     A reaction: A nice slogan for the assertion of a genuine and distinct natural necessity. Hence every possible world will have its own distinctive natural necessity. If the actual contains the possible, then there are possible new natural necessities in the actual!
Natural necessity is when powerful particulars must produce certain results in a situation [Harré/Madden]
     Full Idea: When the natures of the operative powerful particulars, the constraining or stimulating effect of conditions and so on are offered as the grounds for the judgement that a certain effect cannot but happen (or fail), we have natural necessity.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.V.B)
     A reaction: This is the view I subscribe to, the really right bit of scientific essentialism. Can this view be proved? Hm. I take the opposite view to be the misguided Humean idea that if you can imagine it not happening, then it might not happen. Firey furnace.
People doubt science because if it isn't logically necessary it seems to be absolutely contingent [Harré/Madden]
     Full Idea: At the basis of all doubts about the rationality of science lies the idea that there is no rational resting place between logical necessity and absolute contingency.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.III)
     A reaction: I'm struck by the fact that when someone says "I have to go now", they express a necessity. Are there thousands of types of necessity, or one conditional necessity resting on thousands of different foundations?
Property or event relations are naturally necessary if generated by essential mechanisms [Harré/Madden]
     Full Idea: The relationship between co-existing properties or successive events or states is naturally necessary when understood by scientists to be related by generative mechanisms, whose structure and components constitute the essential natures of the world.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.III)
     A reaction: Does that mean that the relationship between an actual state and a possible state is metaphysically necessary, rather than naturally necessary? I think we need dispositions to be part of actuality, and hence replace 'co-existing' with 'possible'.
10. Modality / A. Necessity / 8. Transcendental Necessity
Transcendental necessity is conditions of a world required for a rational being to know its nature [Harré/Madden]
     Full Idea: When the conditions for a rational being having knowledge of the nature of a world are offered as the grounds for the judgement that such a world must have certain characteristics, we have transcendental necessity.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.V.B)
     A reaction: It seems like a rather hard call to decide whether such characteristics pertain to the world, or to the mind of the rational being. Kant is obviously behind this one. You must read his first Critique at least four times to evaluate it.
There is a transcendental necessity for each logical necessity, but the transcendental extends further [Harré/Madden]
     Full Idea: Whatever is logically necessary must be reflected in a corresponding transcendental necessity. But there are a great range of transcendental necessities which are not reflected in any logical necessity.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.V.C)
     A reaction: That is, the world would be unknowable if any of the logical necessities failed to apply to it. I hope that doesn't mean that we are supposed to intuitively know all the logical necessities. Nowadays we are famous for being bad at that.
10. Modality / A. Necessity / 10. Impossibility
A thing is shown to be impossible if a contradiction is demonstrated within its definition [Berkeley]
     Full Idea: A thing is shown to be impossible when a repugnancy is demonstrated between the ideas comprehended in its definition.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.214)
     A reaction: The problem is always that imagination is needed to see the 'repugnancy', and that is relative and limited.
10. Modality / B. Possibility / 9. Counterfactuals
Counterfactuals are just right for analysing statements about the powers which things have [Harré/Madden]
     Full Idea: We understand subjunctive conditionals as statements about possibilities, excluding those actualised. So that form is just right for part of the analysis of a power statement, since to say a thing has a power is to say what behaviour is possible for it.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 5.VII)
     A reaction: They seem unaware of the famous work of Stalnaker and Lewis on this type of analysis, but as a fan of powers I find this interesting, and it offers a nice extra piece for my big jigsaw.
10. Modality / C. Sources of Modality / 3. Necessity by Convention
If natural necessity is used to include or exclude some predicate, the predicate is conceptually necessary [Harré/Madden]
     Full Idea: When a natural necessity is used as the basis for the inclusion or exclusion of the appropriate predicate in the meaning of a concept of a kind of particular, then it is conceptually necessary that that kind of particular has that property or power.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.V.B)
     A reaction: This is one of the bolder views of Harré and Madden, since many philosophers would say that conceptual necessity rests entirely on convention rather than on nature. We could cut them out by just saying that most of our conventions rest on nature.
Having a child is contingent for a 'man', necessary for a 'father'; the latter reflects a necessity of nature [Harré/Madden]
     Full Idea: Described as a man it is quite contingent that he has a child, but described as a father it is conceptually necessary that he has a child. But that conceptual necessity is a reflection of the natural necessity of the father's role in reproduction.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.I)
     A reaction: This is a (good) response to Quine's claim that necessity depends entirely on the mode of description (and his mathematician cyclist example).
10. Modality / C. Sources of Modality / 4. Necessity from Concepts
Is conceptual necessity just conventional, or does it mirror something about nature? [Harré/Madden]
     Full Idea: The question about conceptual necessity is whether it is only stipulative and conventional in character or whether it mirrors something about the nature of physical systems.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.II.A)
     A reaction: This is the key question, which fans of conventionalism (such as Sidelle) don't seem to face up to. I take it to be important that our concepts are not created by a committee of fools, but by people constantly relating to the world.
There is a conceptual necessity when properties become a standard part of a nominal essence [Harré/Madden]
     Full Idea: When discoveries about the nature of a thing or substance explain or justify our holding that certain properties are its nominal essence, then the diachronic process of meaning development creates a genuine conceptual necessity.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.VI)
     A reaction: This sounds like a pretty good account of one of the bases for conceptual necessity. They seem to think that conceptual necessity rests on a mixture of real and nominal essence (but then some of the nominal features are also real).
10. Modality / D. Knowledge of Modality / 1. A Priori Necessary
Necessity and contingency are separate from the a priori and the a posteriori [Harré/Madden]
     Full Idea: The concepts of necessity and contingency are detached from those of the apriori and the a posteriori.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.IV)
     A reaction: This seems to arise quite independently of Kripke, from the attack by the authors on the Humean view of modality. They also mention the possibility of the apriori contingent.
10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / b. Conceivable but impossible
If Goldbach's Conjecture is true (and logically necessary), we may be able to conceive its opposite [Harré/Madden]
     Full Idea: Even in cases (such as Goldbach's Conjecture) which, if true, are logically necessary, we may be able to conceive the opposite. We can conceive of there being a number which is not the sum of two primes.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: [attributed to Kneale] Ah, but can we conceive this (as Descartes would say) 'clearly and distinctly'? I can conceive circular squares, as long as I don't concentrate too hard.
11. Knowledge Aims / B. Certain Knowledge / 2. Common Sense Certainty
It is silly to say that direct experience must be justified, either by reason, or by more experience [Harré/Madden]
     Full Idea: It would be silly to suggest that what is a matter of experience must be justified by reason, and it makes no sense to say that what we are insisting upon as a matter of direct experience must itself be established by experience.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: The first half is now known as the 'Moorean' view (Idea 6349). It does make sense, when faced with a weird experience, to assess and establish it by means of a combination of reason and other experiences. It's called 'coherence'!
11. Knowledge Aims / C. Knowing Reality / 1. Perceptual Realism / a. Naďve realism
Since our ideas vary when the real things are said to be unchanged, they cannot be true copies [Berkeley]
     Full Idea: As our ideas are perpetually varied, without any change in the supposed real things, it necessarily follows that they cannot all be true copies of them.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.239)
     A reaction: This seems a good objection to any direct or naďve realist view. Colours get darker as the sun goes down, and objects become blurred as they recede into the distance.
11. Knowledge Aims / C. Knowing Reality / 1. Perceptual Realism / b. Direct realism
If existence is perceived directly, by which sense; if indirectly, how is it inferred from direct perception? [Berkeley]
     Full Idea: Either you perceive the being of matter immediately, or mediately; if immediately, pray inform me by which of the senses you perceive it; if mediately, let me know by what reasonings it is inferred from those things which you perceive immediately.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.208)
     A reaction: A problem for strong empiricists, and he is right that existence can't be directly perceived, but it seems a good explanation (for which some reason can be shown), and supports a more rationalist view.
11. Knowledge Aims / C. Knowing Reality / 2. Phenomenalism
Sensible objects are just sets of sensible qualities [Berkeley]
     Full Idea: Sensible things are nothing else but so many sensible qualities.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.154)
     A reaction: As it stands this is phenomenalism, but Berkeley eventually votes for idealism. He should acknowledge possible sensations which aren't actually experienced.
Perception is existence for my table, but also possible perception, by me or a spirit [Berkeley]
     Full Idea: The table I write on I say exists, that is, I see and feel it; and if I were out of my study I should say it existed - meaning thereby that if I was in my study I might perceive it, or that some other spirit actually does perceive it.
     From: George Berkeley (The Principles of Human Knowledge [1710], §3)
     A reaction: Berkeley is always (understandably) labelled as an 'idealist', but this seems to be what we call 'phenomenalism', because it allows possible experiences as well as actual ones. See Ideas 5170 and 6522.
Berkeley did not deny material things; he merely said they must be defined through sensations [Berkeley, by Ayer]
     Full Idea: Berkeley did not (as we are commonly told) deny the reality of material things. ..What Berkeley discovered was that material things must be defined in terms of sense-contents.
     From: report of George Berkeley (Three Dialogues of Hylas and Philonous [1713]) by A.J. Ayer - Language,Truth and Logic Ch.2
     A reaction: This seems to be a rather debatable attempt to claim that Berkeley was a phenomenalist (like Ayer), rather than an idealist. Try ideas 3942, 3944, 3945, 3957, 3959 in this database.
Berkeley needed a phenomenalist account of the self, as well as of material things [Ayer on Berkeley]
     Full Idea: The considerations which make it necessary, as Berkeley saw, to give a phenomenalist account of material things, make it necessary also, as Berkeley did not see, to give a phenomenalist account of the self.
     From: comment on George Berkeley (Three Dialogues of Hylas and Philonous [1713]) by A.J. Ayer - Language,Truth and Logic Ch.7
     A reaction: Phenomenalism involves 'possible' experiences as well as actual ones. That could add up to quite a rich and stable account of the self, as opposed to Hume's notorious introspection, which only saw an actual shifting 'bundle' of experience.
11. Knowledge Aims / C. Knowing Reality / 3. Idealism / c. Empirical idealism
The only substance is spirit, or that which perceives [Berkeley]
     Full Idea: It is evident that there is not any other Substance than spirit, or that which perceives.
     From: George Berkeley (The Principles of Human Knowledge [1710], §7)
     A reaction: Weird. To say that this is 'evident' seems to be begging the question. Why should he assume that there is nothing more to reality than his perception of it? He seems strangely unimaginative.
The 'esse' of objects is 'percipi', and they can only exist in minds [Berkeley]
     Full Idea: The absolute existence of unthinking things with no relation to their being perceived is unintelligible to me; their 'esse' is 'percipi', nor is it possible they should have any existence out of the minds or thinking things which perceive them.
     From: George Berkeley (The Principles of Human Knowledge [1710], §3)
     A reaction: "Esse est percipi" (to be is to be perceived) is the well-known slogan associated with Berkeley. I cannot see how Berkeley can assert that the separate existence of things is impossible. He is the classic confuser of epistemology and ontology.
When I shut my eyes, the things I saw may still exist, but in another mind [Berkeley]
     Full Idea: When I shut my eyes, the things I saw may still exist, but it must be in another mind.
     From: George Berkeley (The Principles of Human Knowledge [1710], §90)
     A reaction: This strikes me as ridiculous. What kind of theory says that a table goes out of existence when someone forgets to look at it for a moment, but is then recreated in identical form? Epistemology is not ontology.
'To be is to be perceived' is a simple confusion of experience with its objects [Russell on Berkeley]
     Full Idea: Berkeley thinks 'to be is to be perceived', and only God provides continuity. He has simply confused the experience of perception with the thing being perceived. Ideas have content.
     From: comment on George Berkeley (Three Dialogues of Hylas and Philonous [1713]) by Bertrand Russell - Problems of Philosophy
For Berkelely, reality is ideas and a community of minds, including God's [Berkeley, by Grayling]
     Full Idea: Berkeley's thesis is that reality ultimately consists of a community of minds and their ideas; one of the minds (God) is infinite, and causes most of the ideas.
     From: report of George Berkeley (Three Dialogues of Hylas and Philonous [1713]) by A.C. Grayling - Russell Ch.2
     A reaction: I think Russell nicely pinpoints what is wrong with Berekely, which is that he confuses ideas with their contents. If I think about my garden, the garden is real (probably), which is the content, and they idea is just a way of thinking.
Time is measured by the succession of ideas in our minds [Berkeley]
     Full Idea: Time is measured by the succession of ideas in our minds.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.172)
     A reaction: But we distinguish between subjective time (which flies when you are having fun), and objective time, judged from observation of clocks and nature.
There is no such thing as 'material substance' [Berkeley]
     Full Idea: That there is no such thing as what philosophers call 'material substance', I am seriously persuaded.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.150)
     A reaction: I'm sorry, but I can't do with this. It confuses epistemology with ontology. Ontology is a matter of judgement; epistemology is the evidence on which we base it. We know sensations; personally I judge that there are material substances. What about you?
I conceive a tree in my mind, but I cannot prove that its existence can be conceived outside a mind [Berkeley]
     Full Idea: I may conceive in my own thoughts the idea of a tree, but that is all. And this is far from proving that I can conceive it existing out of the minds of all spirits.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.184)
     A reaction: If Berkeley has based a world view on this point, then his mistake is to require a 'proof'. Aristotle explained why you can't prove everything (not to mention Gödel).
There is nothing in nature which needs the concept of matter to explain it [Berkeley]
     Full Idea: I challenge you to show me that thing in nature which needs matter to explain or account for it.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.212)
     A reaction: I disagree. Physics is a good theory for explaining why we have perceptions. Failing that there is not even a glimmer of an explanation of our experiences.
Perceptions are ideas, and ideas exist in the mind, so objects only exist in the mind [Berkeley]
     Full Idea: Wood, fire, water, flesh, iron, are things that I know, and only known because I perceive them by my senses; these are immediately perceived, and so are ideas; ideas cannot exist without the mind; their existence consists therefore in being perceived.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.220)
     A reaction: This makes no distinction between an idea and its content. Berkeley fails to grasp the weird concept of intentionality. Trees aren't in my head, just because I think about them!
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / c. Primary qualities
Primary qualities (such as shape, solidity, mass) are held to really exist, unlike secondary qualities [Berkeley]
     Full Idea: Sensible qualities are by philosophers divided into primary and secondary; the former are extension, figure, solidity, gravity, motion and rest, which exist really in bodies.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.169)
     A reaction: A crucial distinction, which anti-realists such as Berkeley end up denying. I think it is a good distinction, and philosophers should fight to preserve it.
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / e. Primary/secondary critique
No one can, by abstraction, conceive extension and motion of bodies without sensible qualities [Berkeley]
     Full Idea: I desire any one to reflect and try whether he can, by any abstraction of thought, conceive the extension and motion of a body without any sensible qualities.
     From: George Berkeley (The Principles of Human Knowledge [1710], §10)
     A reaction: The rather geometrical view of objects found in Descartes and Russell is an attempt to do this. I don't think the fact that we can't really achieve it matters much. We divide primary from secondary qualities in our understanding, not in experience.
Motion is in the mind, since swifter ideas produce an appearance of slower motion [Berkeley]
     Full Idea: Is it not reasonable to say that motion is not without the mind, since if the succession of ideas in the mind become swifter the motion, it is acknowledged, shall appear slower without any alteration in any external object.
     From: George Berkeley (The Principles of Human Knowledge [1710], §14)
     A reaction: An intriguing argument, based on what is now the principle of slow-motion photography. Fast minds slow down movement, like great tennis players. By what right does Berkeley say that the external subject is unaltered?
Figure and extension seem just as dependent on the observer as heat and cold [Berkeley]
     Full Idea: If heat and cold are only affections of the mind (since the same body seems cold to one hand and warm to the other), why may we not argue that figure and extension also appear different to the same eye at different stations?
     From: George Berkeley (The Principles of Human Knowledge [1710], §14)
     A reaction: If the assessment of the qualities of an object is entirely a matter of our experiences of it, there is no denying Berkeley on this. However, judgement goes beyond experience, into speculations, inferences, and explanations.
A mite would see its own foot as large, though we would see it as tiny [Berkeley]
     Full Idea: A mite must be supposed to see his own foot as a body of some considerable dimension, though they appear to you scarcely discernible.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.170)
     A reaction: Berkeley is confused. Hot is secondary, but temperature is primary. Bigness is secondary, size primay. Midgets and tall people don't disagree over the size of a table.
The apparent size of an object varies with its distance away, so that can't be a property of the object [Berkeley]
     Full Idea: As we approach to or recede from an object, the visible extension varies, being at one distance ten or a hundred times greater than at another; doth it not follow that it is not really inherent in the object?
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.171)
     A reaction: Berkeley is confused, because he is too literally empirical. Qualities are not self-evidently primary or secondary, but are judged so after comparisons (e.g. with testimony, or with the other senses).
'Solidity' is either not a sensible quality at all, or it is clearly relative to our senses [Berkeley]
     Full Idea: By 'solidity' either you do not mean any sensible quality, and so it is beside our enquiry; or if you do, it must be hardness or resistance, which are plainly relative to our senses.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.173)
     A reaction: Berkeley fails to recognise that a quality can have primary and secondary aspects (hot/high temperature). He is right that primary qualities are not directly perceived. They are judgements.
Distance is not directly perceived by sight [Berkeley]
     Full Idea: Distance is not properly and immediately perceived by sight.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.186)
     A reaction: Interestingly, if secondary qualities are not strictly perceptions of the object, and primary qualities are not directly perceived, then we don't seem to perceive anything at all. Perhaps we should drop the concept of 'perception'?
12. Knowledge Sources / B. Perception / 3. Representation
Berkeley's idealism resulted from fear of scepticism in representative realism [Robinson,H on Berkeley]
     Full Idea: It was fear of scepticism based upon representative realism that motivated Berkeley's idealism.
     From: comment on George Berkeley (The Principles of Human Knowledge [1710]) by Howard Robinson - Perception II.1
     A reaction: Personally I side with Russell, who accepts representative realism, and also accepts that some degree of scepticism is unavoidable, but without getting excited about it. The key to everything is to be a 'fallibilist' about knowledge.
Immediate objects of perception, which some treat as appearances, I treat as the real things themselves [Berkeley]
     Full Idea: Those immediate objects of perception, which, according to you, are only appearances of things, I take to be the real things themselves.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.237)
     A reaction: If that is a judgement, which it seems to be, it is a strange one. Realists offer a much better explanation of perceptions.
12. Knowledge Sources / B. Perception / 4. Sense Data / d. Sense-data problems
We experience qualities as of objects, not on their own [Harré/Madden]
     Full Idea: It seems clear that we are never presented with a quality except of some object.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: I'm not convinced that that 'seems clear'. The idea of sense-data is that while it seems to be of an object, reason suggests that the experience of the quality must precede the object assembled thereby. How do you arbitrate?
12. Knowledge Sources / B. Perception / 6. Inference in Perception
Inference in perception is unconvincingly defended as non-conscious and almost instantaneous [Harré/Madden]
     Full Idea: To the objection that one is never aware of inferences in sensation, the unconvincing reply comes that such inferences are automatic, telescoped, non-discursive and unconscious.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: I think the 'unconvincing' reply is a bit more convincing in the light of modern research on the brain, which presents everything it does in a far less conscious light than the traditional view. Even reason seems barely conscious.
12. Knowledge Sources / D. Empiricism / 1. Empiricism
Knowledge is of ideas from senses, or ideas of the mind, or operations on sensations [Berkeley]
     Full Idea: The objects of knowledge are either ideas imprinted on the senses, or passions and operations of the mind, or ideas (formed by memory and imagination) compounding, dividing or barely representing the original perceptions.
     From: George Berkeley (The Principles of Human Knowledge [1710], §1)
     A reaction: This is the germ of Hume's 'associations' (Idea 2189). There is not much room here for synthetic a priori knowledge, as the a priori part seems to merely know the mind. Most of Russell's epistemology is contained in the last part of the sentence.
Real things and imaginary or dreamed things differ because the latter are much fainter [Berkeley]
     Full Idea: The difference between real things, and chimeras formed by the imagination, or the visions of a dream, is that the latter are faint and indistinct.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.225)
     A reaction: In Hume this becomes 'impressions' and 'ideas'. It does raise the question of WHY some ideas are not as faint as others.
12. Knowledge Sources / D. Empiricism / 2. Associationism
Humean impressions are too instantaneous and simple to have structure or relations [Harré/Madden]
     Full Idea: The Humean event, the impression, basic to his epistemology, is, as we have seen, instantaneous in nature, punctiform and elemenentary, and from this characterisation follows its atomicity, its lack of internal connections with anything else.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: This simple point about Humean associationism is the key to grasping the whole hideous worldview that has gripped twentieth century philosophy. How many impressions make up an apple? And why do they sum to make something?
12. Knowledge Sources / D. Empiricism / 4. Pro-Empiricism
Geometry is originally perceived by senses, and so is not purely intellectual [Berkeley]
     Full Idea: Figures and extension, being originally perceived by sense, do not belong to pure intellect.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.176)
     A reaction: Is the square root of 169 less 'pure' in my mind if I learn it from laying out bricks instead of by thinking about numbers? Confusion of how you learn with what you learn?
13. Knowledge Criteria / D. Scepticism / 3. Illusion Scepticism
It is possible that we could perceive everything as we do now, but nothing actually existed. [Berkeley]
     Full Idea: We might perceive all things just as we do now, though there was no matter in the world.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.209)
     A reaction: An old Greek argument. Now we have an explanation of experience, but we wouldn't if nothing existed. Which doesn't prove that anything exists. Is some explanation always preferable to none? Cf. religion.
13. Knowledge Criteria / E. Relativism / 3. Subjectivism
A hot hand and a cold hand will have different experiences in the same tepid water [Berkeley]
     Full Idea: Suppose now one of your hands hot, and the other cold, and that they are both at once put into the same vessel of water, in an intermediate state; will not the water seem cold to one hand, and warm to the other?
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], I p.158)
     A reaction: A nice clear example of how some relativism must be acknowledged. It feels hot, but what is its temperature in degrees C?
14. Science / B. Scientific Theories / 1. Scientific Theory
Clavius's Paradox: purely syntactic entailment theories won't explain, because they are too profuse [Harré/Madden]
     Full Idea: Clavius' Paradox shows that a theorem-like structure organised by entailments cannot be identified as a scientific explanation by reference to syntactical criteria, since it shares its syntactic criteria with many other theorem-like structures.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.3)
     A reaction: I think I was pretty convinced that a scientific theory had to meet more than mere syntactic criteria, before I encountered this idea. Lewis's account of laws may have to face this objection.
Simplicity can sort theories out, but still leaves an infinity of possibilities [Harré/Madden]
     Full Idea: Whatever simplicity criterion is chosen for theories, it can at best sort out strata of explanations of equal simplicity, each stratum containing infinitely many items.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.I)
     A reaction: [They cite Katz 1962 for this] This sounds to me like a purely technical result, where pragmatics would narrow the plausible theories right down. The 'Paradox of Clavius' is behind the idea (with an infinity of possible middle terms).
The powers/natures approach has been so successful (for electricity, magnetism, gravity) it may be universal [Harré/Madden]
     Full Idea: The marvellous success in science of the powers/natures formula as a guide to research naturally leads to an attempt at a universal application of such a powerful schema. The electric and magnetic and gravitational fields are known by their powers.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.III)
     A reaction: This is a wonderfully heroic, and accurate, opposition to the prevailing accounts of science when they wrote. The laws, processes and equations of science and just part of a description of the natures and basic powers of what exists.
14. Science / B. Scientific Theories / 2. Aim of Science
We prefer the theory which explains and predicts the powers and capacities of particulars [Harré/Madden]
     Full Idea: There are competitive models of the nature of things and materials, and that one is chosen which is successful in explaining the most powers and capacities of particulars and in leading to the discovery of hitherto unsuspected powers and capacities.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.III)
     A reaction: If the powers and capacities are what get explained, what exactly does the explaining? If you says 'essences', you then have to characterise essences in some other way. I vote for basic powers as primitive. - but Idea 15302.
Science investigates the nature and constitution of things or substances [Harré/Madden]
     Full Idea: The task of natural science is to investigate the nature of a thing or substance, and to test hypotheses as to the constitution of that thing or substance.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.IV)
     A reaction: This seems to suggest that science is only concerned with the very small, but it would include facts such as the dramatic change of a lump of uranium when it grows bigger.
14. Science / C. Induction / 3. Limits of Induction
Conjunctions explain nothing, and so do not give a reason for confidence in inductions [Harré/Madden]
     Full Idea: 'Going together' is irrelevant as an explanation, and that is precisely why it is useless as a reason for having confidence in inductive inferences.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 4.I)
     A reaction: I suspect that the deep underlying question is whether the actual world has modal features - that is, are dispositions, rather than mere categorical properties, a feature of the actual. Is this room full of possibilities? Yes, say I.
Hume's atomic events makes properties independent, and leads to problems with induction [Harré/Madden]
     Full Idea: The atomicity of Humean events ensures the sequential independence of properties, ...and this in turn leads to the Humean problem of induction.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: This strikes me as pretty good analysis of what has gone wrong with the Humean account. As far as I can see, the 'problem' of induction just doesn't occur in scientific essentialism.
14. Science / C. Induction / 5. Paradoxes of Induction / b. Raven paradox
Contraposition may be equivalent in truth, but not true in nature, because of irrelevant predicates [Harré/Madden]
     Full Idea: The question about Hempel's Paradox is whether contraposition is not only equivalent in truth, but equivalent tout court. It forcibly inserts new predicates into a context of properties known to be connected by nature.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.I)
     A reaction: [compressed] This seems to capture quite nicely the intuition most people have (which makes it a 'paradox') that the equivalent predicate is irrelevant to the immediate enquiry. The paradox is good because it forces the present explanation.
The items put forward by the contraposition belong within different natural clusters [Harré/Madden]
     Full Idea: If empirical predicates are linked in clusters, contraposition of (black, raven) would carry one via such pairs as (shoe, white) into a different empirical cluster, or no cluster at all.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.I)
     A reaction: This is, of course, addressed to Hempel's Raven Paradox. Those paradoxes now strike me as relics of a time when Humean empiricism and logic were thought to be the best approaches to scientific theory. Harré and Madden pioneered a better view.
The possibility that all ravens are black is a law depends on a mechanism producing the blackness [Harré/Madden]
     Full Idea: The generating mechanism that produces black raven-like beings is assumed in the according of potential law status to the statement that all ravens are black.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.III)
     A reaction: This is a very nice succinct statement of what I take to be the scientific essentialist view of induction. It isn't about building up Humean habits of regularity, but of gradually inferring explanatory mechanisms, which might even give necessities.
14. Science / D. Explanation / 1. Explanation / b. Aims of explanation
Only changes require explanation [Harré/Madden]
     Full Idea: Only changes require explanation.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.I)
     A reaction: This points to powers as the fundamentals of all explanations, whereas if stasis also has to be explained then structures and matter have to be explained. Why is there something rather than nothing? No explanations allowed!
14. Science / D. Explanation / 1. Explanation / c. Direction of explanation
If explanation is by entailment, that lacks a causal direction, unlike natural necessity [Harré/Madden]
     Full Idea: Natural necessity involves causal directionality as an essential element, while entailment as a purely logical relation does not.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.V)
     A reaction: If there is a naturally necessary relation between an eclipse and its cause, the directionality of that doesn't seem to arise from the mutual relation between the two. You have to add time's arrow, or causation's arrow.
Powers can explain the direction of causality, and make it a natural necessity [Harré/Madden]
     Full Idea: The concept of power can be used to explain the temporal directionality of the concept of causality, and, at the same time, makes that causality a genuine case of natural necessity.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.V)
     A reaction: I'm not sure that powers actually 'explain' causal direction. It seems more like transferring the directionality from the process to its source. You are still left with brute directionality.
14. Science / D. Explanation / 2. Types of Explanation / i. Explanations by mechanism
If the nature of particulars explains their powers, it also explains their relations and behaviour [Harré/Madden]
     Full Idea: If we see that certain powers and capacities are explained by the nature of certain particulars and are necessarily attendant upon them, then we have an explanation of why certain things must go together and happen as they do.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 4.I)
     A reaction: They are offering this as an account of induction, as well as of explanation, and it is a nice summary of the account which I take to be correct.
Powers and natures lead us to hypothesise underlying mechanisms, which may be real [Harré/Madden]
     Full Idea: Usually in science the powers/natures formula does lead to the imagining of hypothetical mechanisms which might be discovered to be real.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.III)
     A reaction: The underlying mechanism is what I take Aristotle to have proposed, and it is the instinctive explanation by children (charted by Susan Gelman).
14. Science / D. Explanation / 2. Types of Explanation / j. Explanations by reduction
Solidity comes from the power of repulsion, and shape from the power of attraction [Harré/Madden]
     Full Idea: Solidity is the effect of a power of repulsion between whole things, and shape is the effect of a power of attraction between parts of whole things.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.II.B)
     A reaction: This sounds a bit too neat in its division, but it shows nicely how a metaphysics with powers can deal with categorical properties. The question, remains, though of what is doing the repelling and attracting. Fields, they say.
14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence
Essence explains passive capacities as well as active powers [Harré/Madden]
     Full Idea: Capacities just as much as powers, what particulars and substances are liable to undergo as well as what they are able to do, are explained by reference to what the thing is in itself.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.II.C)
     A reaction: This is an important warning against trying to give the whole account in terms of powers - unless the capacities and structures and categorical properties can also be explained in terms of the basic powers.
15. Nature of Minds / A. Nature of Mind / 4. Other Minds / a. Other minds
Berkeley's idealism gives no grounds for believing in other minds [Reid on Berkeley]
     Full Idea: I can find no principle in Berkeley's system, which affords me even probable ground to conclude that there are other intelligent beings, like myself.
     From: comment on George Berkeley (The Principles of Human Knowledge [1710]) by Thomas Reid - Essays on Intellectual Powers 2: Senses 10
     A reaction: I agree, which means that Berkeley's position seems to entail solipsism, unless God is the Cartesian deus ex machina who rescues him from this wall of ignorance.
15. Nature of Minds / A. Nature of Mind / 4. Other Minds / c. Knowing other minds
I know other minds by ideas which are referred by me to other agents, as their effects [Berkeley]
     Full Idea: The knowledge I have of other spirits is not immediate, as is the knowledge of my ideas; but depending on the intervention of ideas, by me referred to agents or spirits distinct from myself, as effects or concomitant signs.
     From: George Berkeley (The Principles of Human Knowledge [1710], §145)
     A reaction: This strikes me as gross intellectual dishonesty, since the argument Berkeley uses to assert other minds could equally be used to assert the existence of tables ('by me referred to agents distinct from myself, as effects'). Be a solipsist or a realist.
Experience tells me that other minds exist independently from my own [Berkeley]
     Full Idea: It is plain that other minds have an existence exterior to my mind, since I find them by experience to be independent of it.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.220)
     A reaction: This is a surprising claim from Berkeley. If trees only exist through their experience in my mind, why don't other minds exist in the same way?
15. Nature of Minds / A. Nature of Mind / 7. Animal Minds
If animals have ideas, and are not machines, they must have some reason [Berkeley]
     Full Idea: If the brutes have any ideas at all, and are not bare machines (as some would have them), we cannot deny them to have some reason.
     From: George Berkeley (The Principles of Human Knowledge [1710], Intro §11)
     A reaction: It seems possible to imagine a low level of mind, where a few ideas (or concepts) float around, but hardly anything worth the name of reason. However, a Darwinian view suggests that concepts must bestow an advantage, so the two go together.
15. Nature of Minds / B. Features of Minds / 4. Intentionality / b. Intentionality theories
Berkeley replaced intentionality with an anti-abstractionist imagist theory of thought [Berkeley, by Robinson,H]
     Full Idea: By Berkeley - with his anti-abstractionism and imagist theory of thought - the classical sense-datum conception was firmly established, and intentionality had disappeared as an intrinsic property, not only of perceptual states, but of all mental contents.
     From: report of George Berkeley (The Principles of Human Knowledge [1710]) by Howard Robinson - Perception 1.6
     A reaction: Intentionality was originally a medieval concept, and was revived by Brentano in the late nineteenth century. Nowadays intentionality is taken for granted, but I still suspect that we could drop it, and talk of nothing but brain states caused by reality.
15. Nature of Minds / C. Capacities of Minds / 3. Abstraction by mind
The mind creates abstract ideas by considering qualities separated from their objects [Berkeley]
     Full Idea: We are told that the mind being able to consider each quality of things singly, or abstracted from those other qualities with which it is united, does by that means frame to itself abstract ideas.
     From: George Berkeley (The Principles of Human Knowledge [1710], Intro §7)
     A reaction: A helpful explanation of 'abstract' ideas. Berkeley gives colour and movement as examples. Fodor suggests that abstraction is the key strategy in empiricist epistemology. The difficulty is to decide whether the qualities are natural or conventional.
I can only combine particulars in imagination; I can't create 'abstract' ideas [Berkeley]
     Full Idea: Whether others can abstract their ideas, they best can tell. For myself, I find I have a faculty of imagining, or representing to myself, only the idea of those particular things I have perceived, and of compounding and dividing them.
     From: George Berkeley (The Principles of Human Knowledge [1710], 10)
     A reaction: He is admitting mixing experiences, but always particulars, never abstract. His examples are 'man' and 'motion'. Compare Aristotle Idea 9067. Berkeley is, I think, trapped in a false imagistic view of thought. My image of Plato blurs young and old.
15. Nature of Minds / C. Capacities of Minds / 5. Generalisation by mind
The very concepts of a particular power or nature imply the possibility of being generalised [Harré/Madden]
     Full Idea: The concepts of power, capacity and the nature of a particular involve generalisations and hence already presuppose that there are grounds for extrapolation.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.V)
     A reaction: I take sortal essentialism to be a serious misundertanding, but the mistake needs to be explained, and this idea is helpful towards that. I think the problem resides in the nature of the language we need to describe particulars.
16. Persons / D. Continuity of the Self / 7. Self and Thinking
Ideas are perceived by the mind, soul or self [Berkeley]
     Full Idea: The thing which knows or perceives ideas is what I call mind, spirit, soul or myself.
     From: George Berkeley (The Principles of Human Knowledge [1710], §2)
     A reaction: The interest here is in making no distinction between 'mind' and 'self', which seems to ally Berkeley with Locke's view of personal identity, as continuity of consciousness. The addition of 'soul' tries to connect Locke to Christian thought.
17. Mind and Body / E. Mind as Physical / 5. Causal Argument
How can that which is unthinking be a cause of thought? [Berkeley]
     Full Idea: How can that which is unthinking be a cause of thought?
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.203)
     A reaction: Presumably, though, he thinks that thought can cause 'that which is unthinking' to move'. He likes one half of the interaction problem (which supports dualism), but avoids the other half.
18. Thought / C. Content / 2. Ideas
Berkeley probably used 'idea' to mean both the act of apprehension and the thing apprehended [Russell on Berkeley]
     Full Idea: Berkeley seems to have confused the colour of the thing apprehended with the act of apprehension; probably either of these would have been called an 'idea' be Berkeley.
     From: comment on George Berkeley (Three Dialogues of Hylas and Philonous [1713]) by Bertrand Russell - Problems of Philosophy
     A reaction: If we are saying that Berkeley's error was entirely verbal, there is a chicken-and-egg problem. He was an idealist, so he wouldn't have thought that there were two separate concepts behind the word 'idea'. Russell merely asserts that there are.
18. Thought / C. Content / 5. Twin Earth
What properties a thing must have to be a type of substance can be laid down a priori [Harré/Madden]
     Full Idea: A statement which asserts that a substance or thing must manifest certain properties in order to be identified as a thing or substance of that sort can be laid down a priori.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.IV)
     A reaction: This observation is encountered in Sidelle, but this is earlier, and seems to be the key to the Twin Earth thing. It is just convention whether we call XYZ water, or whether there are two sorts of jade or one. Science has prestige.
19. Language / A. Nature of Meaning / 2. Meaning as Mental
Language is presumably for communication, and names stand for ideas [Berkeley]
     Full Idea: It is a received opinion that language has no other end but the communicating our ideas, and that every significant name stands for an idea.
     From: George Berkeley (The Principles of Human Knowledge [1710], Intro §19)
     A reaction: This attitude to language has been widely discredited, partly by the observation that 'idea' is very ambiguous, and partly by the fans of meaning-as-use. Truth conditions seem to be ideas, and so are speaker's intentions.
19. Language / D. Propositions / 4. Mental Propositions
I can't really go wrong if I stick to wordless thought [Berkeley]
     Full Idea: So long as I confine my thoughts to my own ideas divested of words, I do not see how I can easily be mistaken.
     From: George Berkeley (The Principles of Human Knowledge [1710], Intro §22)
     A reaction: I think it was one of the great errors of twentieth century philosophy to say that Berkeley cannot do this, because thought needs language. Personally I think language lags along behind most our thinking, tidying up the mess. I believe in propositions.
19. Language / F. Communication / 5. Pragmatics / a. Contextual meaning
We say there is 'no alternative' in all sorts of contexts, and there are many different grounds for it [Harré/Madden]
     Full Idea: To attribute necessity to a condition, an outcome or effect, the truth of a statement, or a conclusion, is to indicate within the relevant context that no alternative is possible. In each context there are appropriate grounds for such judgements.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.V)
     A reaction: This anticipipates Kit Fine's account of necessity by 25 years, and seems to be the right way to understand it. In ordinary usage, 'there is no alternative' is obvious a quite different claim in very different contexts.
22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / a. Preconditions for ethics
Immorality is not in the action, but in the deviation of the will from moral law [Berkeley]
     Full Idea: Sin or moral turpitude doth not consist in the outward physical action or motion, but in the internal deviation of the will from the laws of reason and religion.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.227)
     A reaction: A Kantian view (that the only good thing is a good will). It is a very empiricist (and anti-Greek) view to deny that actions have any intrinsic value.
26. Natural Theory / A. Speculations on Nature / 7. Later Matter Theories / a. Early Modern matter
No one can explain how matter affects mind, so matter is redundant in philosophy [Berkeley]
     Full Idea: How matter should operate on a spirit, or produce any idea in it, is what no philosopher will pretend to explain; it is therefore evident there can be no use of matter in natural philosophy.
     From: George Berkeley (The Principles of Human Knowledge [1710], §50)
     A reaction: An intriguing argument for idealism, which starts in Cartesian dualism, but then discards the physical world because of the notorious interaction problem. Of course, if he had thought that matter and spirit were one (Spinoza) the problem vanishes.
26. Natural Theory / B. Natural Kinds / 6. Necessity of Kinds
We can base the idea of a natural kind on the mechanisms that produce natural necessity [Harré/Madden]
     Full Idea: Natural necessity involves the concept of generative mechanisms and powerful particulars, and these in turn can be the basis of a useful notion of a natural kind.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.V)
     A reaction: Not sure about that. Say gold and silver are two kinds that lead to two outcomes. Each is a natural necessity. How do you distinguish them? Only by one being the gold-necessity and the other the silver-necessity. Circular?
26. Natural Theory / B. Natural Kinds / 7. Critique of Kinds
Species do not have enough constancy to be natural kinds [Harré/Madden]
     Full Idea: We know from biology that naturally occurring species do not exhibit the constancy required by the concept of natural kind.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 8.IV)
     A reaction: This view has been challenged recently. How much constancy does a natural kind need? Even protons decay eventually, it seems. I think a natural kind just needs a fair degree of stability over a reasonable time-period. Tigers qualify.
26. Natural Theory / C. Causation / 2. Types of cause
If the concept of a cause includes its usual effects, we call it a 'power' [Harré/Madden]
     Full Idea: The concept of cause may come to include the concepts of its usual effects. Concepts of this character are used in science, and in common language, to ascribe powers.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: See Theme 8|c|3 in Theme/Structure for more ideas about powers. It's hard to see how you could specify a cause at all if you weren't allowed to say what it does. I love powers, and want to make them the key idea in all of metaphysics.
26. Natural Theory / C. Causation / 5. Direction of causation
Humean accounts of causal direction by time fail, because cause and effect can occur together [Harré/Madden]
     Full Idea: The Humean effort to ground the intuition of causal directionality on temporal priority of cause alone fails, because in fact some causes and effects are simultaneous. The moving of the knife and separation of the orange occur together.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: Since I take causation to be largely concerned with movements of 'energy', this idea that cause and effect might be simultaneous sounds more like a matter of pragmatics and convention. Moving the knife and moving the orange are different.
26. Natural Theory / C. Causation / 6. Causation as primitive
Active causal power is just objects at work, not something existing in itself [Harré/Madden]
     Full Idea: The exercise of causal power is not a force or power that has some existence of its own but refers to forceful objects at work.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: This seems to be a behaviourist account of causation, which should make us a bit suspicious. Powers differ from one another. Does all causation have something universally in common? 'Energy' is a stab at the missing ingredient.
26. Natural Theory / C. Causation / 8. Particular Causation / a. Observation of causation
Causation always involves particular productive things [Harré/Madden]
     Full Idea: Causation always involves a material particular which produces or generates something.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.I.A)
     A reaction: I agree with this. My bete noire is the idea that causation somehow results from laws or general truths. That gets the whole thing the wrong way round. This idea is based on the notion of 'powers'.
26. Natural Theory / C. Causation / 8. Particular Causation / c. Conditions of causation
Efficient causes combine stimulus to individuals, absence of contraints on activity [Harré/Madden]
     Full Idea: Efficient causes comprise both the presence of stimuli which activate a quiescent individual, and the absence or removal of constraints upon an individual already in a state of activity.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.II.B)
     A reaction: This is part of an account of causation in term of 'powers', with which I agree. Before you object, there is always going to be something about causation which is mind boggling weird, and probably leaves even God bewildered.
26. Natural Theory / C. Causation / 8. Particular Causation / d. Selecting the cause
The cause (or part of it) is what stimulates or releases the powerful particular thing involved [Harré/Madden]
     Full Idea: We can unambiguously differentiate the cause from the effect in that whatever stimulates or releases the action of the powerful particular involved in the causal production is the cause or part of the cause of that effect.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: I have doubts about distinguishing stimulus from release, and they sensibly don't say they have a test for 'the' cause, but I roughly agree with this idea. I take 'the' cause to also be tied in with explanation.
26. Natural Theory / C. Causation / 9. General Causation / a. Constant conjunction
We discover natural behaviour by observing settled laws of nature, not necessary connections [Berkeley]
     Full Idea: That food nourishes, sleep refreshes, and fire warms us; all this we know, not by discovering any necessary connexion between our ideas, but only by the observation of the settled laws of nature.
     From: George Berkeley (The Principles of Human Knowledge [1710], §31)
     A reaction: Hume is famous for this idea, but it is found in Hobbes too (Idea 2364), and is the standard empiricist view of causation. The word 'settled' I take to imply that the laws are contingent, because they could become unsettled at any time.
26. Natural Theory / D. Laws of Nature / 4. Regularities / a. Regularity theory
The laws of nature are mental regularities which we learn by experience [Berkeley]
     Full Idea: The set rules or established methods wherein the Mind we depend on excites in us the ideas of sense, are called the 'laws of nature'; and these we learn by experience, which teaches us that such and such ideas are attended with certain other ideas.
     From: George Berkeley (The Principles of Human Knowledge [1710], 33)
     A reaction: He observes that the ideas of sense are more regular than other mental events, and attributes the rules to an Author. He is giving the standard empirical Humean view, with his own quirky idealist slant.
26. Natural Theory / D. Laws of Nature / 5. Laws from Universals
Originally Humeans based lawlike statements on pure qualities, without particulars [Harré/Madden]
     Full Idea: The original Humean suggestion was that lawlike statements must contain only purely qualitative predicates - that is, predicates which do not require in a statement of their meaning a reference to any particular object or spatio-temporal location.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 2.II)
     A reaction: Harré and Madden are keen to promote particulars (with powers) as the foundation of scientific theory, and I agree with them. It strikes me as quite elementary that generalisations arise from particulars, so can't fundamentally explain them.
26. Natural Theory / D. Laws of Nature / 7. Strictness of Laws
Being lawlike seems to resist formal analysis, because there are always counter-examples [Harré/Madden]
     Full Idea: The whole idea of a formal analysis of the concept of lawlikeness has come to seem hopeless; every syntactical criterion proposed has a counter-example.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 2.II)
     A reaction: They seem unaware of Lewis's work in this area, which may be the most sophisticated attempt at a (Humean) attempt at formal analysis. Personally I see nothing in Lewis that would make them change their minds.
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / b. Scientific necessity
Necessary effects will follow from some general theory specifying powers and structure of a world [Harré/Madden]
     Full Idea: Given some general theory specifying the fundamental causal powers and thereby laying down the general lineaments of a world, the necessity of certain effects can be inferred. They will be 'hypothetically necessary' (given those powers).
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 1.III.B)
     A reaction: This is a pretty good statement of the core idea of necessity at the heart of scientific essentialism. Are we to call this 'natural' necessity or 'metaphysical' necessity? Presumably it is 'relative' necessity. Big implications for induction!
Humeans say there is no necessity in causation, because denying an effect is never self-contradictory [Harré/Madden]
     Full Idea: Humeans say there can be no element of necessity in the causal relation because the conjunction of a description of a cause with the negation of a description of its usual effect is never self-contradictory.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.I)
     A reaction: We might say there actually is a contradiction, because you assert the existence of something, and then deny that existence by denying that the effect could occur. If the object is inert this is wrong, but if it is defined by its powers it is right.
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / c. Essence and laws
In lawful universal statements (unlike accidental ones) we see why the regularity holds [Harré/Madden]
     Full Idea: The only sure way of distinguishing lawful and accidental universal statements is to point out that in the former cases we see why the regularity must hold, while in the latter case we do not.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 2.II)
     A reaction: I agree with this, and also take it to be the solution to the problem of induction. That smoking causes cancer will be a true generalisation but not a law, until we see clearly why it happens.
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / e. Anti scientific essentialism
If properties and qualities arise from an inward essence, we will remain ignorant of nature [Berkeley]
     Full Idea: An inducement to pronouncing ourselves ignorant of the nature of things is the opinion that everything includes within itself the cause of its properties; or that there is in each object an inward essence which is the source whence its qualities flow.
     From: George Berkeley (The Principles of Human Knowledge [1710], §102)
     A reaction: This remains a good objection to essentialism - that while it remains quite a plausible picture of how nature operates, it makes the task of understanding nature hopeless. We can grasp imposed regular laws, but not secret inner essences.
26. Natural Theory / D. Laws of Nature / 11. Against Laws of Nature
We could call any generalisation a law, if it had reasonable support and no counter-evidence [Harré/Madden]
     Full Idea: There is a case for calling a generalisation a law when its only confirmation is the multiplication of instances, if they don't conflict with other criteria. In fact any supported generalisation could count as a law if there is no counter-evidence.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 2.II)
     A reaction: This is the beginning of the modern doubts about laws of nature, fully articulated in Mumford 2004. It seems to me inescapable that laws drop out if our ontology is based on powerful particulars. They are just patterns of outcome.
27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement
We perceive motion, and not just successive occupations of different positions [Harré/Madden]
     Full Idea: A moving thing is perceptually distinct from a motionless thing, but takes on no new quality. The perception of its motion is a genuine perception. Its motion is not inferred from observation of its successive occupations of different relative positions.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 3.II)
     A reaction: This seems to be a response to Russell's reductive 'at-at' account of motion, which always struck me as wrong. It doesn't prove Russell wrong, of course, and they are trying to demonstrate that we perceive causation directly.
27. Natural Reality / A. Classical Physics / 2. Thermodynamics / a. Energy
'Energy' is a quasi-substance invented as the bearer of change during interactions [Harré/Madden]
     Full Idea: In the case of electron/positron/gamma ray annihilation scientists maintain the paradigm of rational explanation by inventing a quasi-substance as the bearer of continuity, and all three are seen in terms of 'energy'.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.III)
     A reaction: What a relief to see energy described as a 'quasi-substance'. I spent all of my physics studies bewildered by the nature of energy (especially when described as 'pure energy'). What does e=mc^2 mean if e is a quasi-substance?
'Kinetic energy' is used to explain the effects of moving things when they are stopped [Harré/Madden]
     Full Idea: The 'store' of kinetic energy is used as a latency concept to explain the power of bringing about changes which is manifested by the moving thing when its motion is arrested.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
     A reaction: These ideas have been most illuminating in connecting for me the general idea of a 'power' to the rather dubious concept of 'energy' in physics.
27. Natural Reality / B. Modern Physics / 1. Relativity / a. Special relativity
All motion is relative, so a single body cannot move [Berkeley]
     Full Idea: There cannot be any motion other than relative; …if there was one only body in being it could not possibly move.
     From: George Berkeley (The Principles of Human Knowledge [1710], §112)
     A reaction: This seems to agree with with Leibniz in denying the Newton-Clarke idea of absolute space. See Idea 2100. Suppose there were two bodies racing towards one another, when one of them suddenly vanished?
27. Natural Reality / C. Space / 2. Space
Space can't be an individual (in space), but it is present in all places [Harré/Madden]
     Full Idea: Space lacks a place, and does not qualify as an individual, since the ordinary notion of individuals relates to place not space. ...But we can think of space as present in every place through the necessary connection between space and all places.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 9.IV)
     A reaction: I'm not sure I understand it being present in every place, given that it is every place.
27. Natural Reality / D. Time / 1. Nature of Time / c. Idealist time
I cannot imagine time apart from the flow of ideas in my mind [Berkeley]
     Full Idea: Whenever I attempt to frame a simple idea of time, abstracted from the succession of ideas in my mind, which flows uniformly and is participated in by all beings, I am lost and embrangled in inextricable difficulties.
     From: George Berkeley (The Principles of Human Knowledge [1710], §98)
     A reaction: 'Embrangled'! A nice statement of the idealist view of time, as entirely mental. I know what he means. However, surely he can manage to imagine a movement which continues when he shuts he eyes? Try blinking during a horse race.
27. Natural Reality / F. Chemistry / 1. Chemistry
Chemical atoms have two powers: to enter certain combinations, and to emit a particular spectrum [Harré/Madden]
     Full Idea: The same electronic constitution confers two distinct powers upon chemical atoms: the power of entering only into certain chemical combinations and the power to radiate a particular spectrum.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 5.VI)
     A reaction: Presumably radioactive elements emit other radiation. Do atoms have passive powers as well as active ones?
Chemistry is not purely structural; CO2 is not the same as SO2 [Harré/Madden]
     Full Idea: Modern chemistry is not, as chemistry, purely structural. ...Thus CO2 is a different substance from SO2.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 6.II)
     A reaction: I don't think I ever thought the chemistry was purely structural, but if you go in for the idea that reality is essentially geometrical (inspired by physics, presumably, like Ladyman) then you might make this mistake.
28. God / B. Proving God / 1. Proof of God
There must be a God, because all sensible things must be perceived by him [Berkeley]
     Full Idea: I immediately and necessarily conclude the being of a God, because all sensible things must be perceived by him.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.198)
     A reaction: Daft. This contradicts Berkeley's whole empiricist position, that existence depends on known experience. Who knows whether God is thinking about trees?
There must be a God, because I and my ideas are not independent [Berkeley]
     Full Idea: From the dependency I find in myself and my ideas, I do by an act of reason necessarily infer the existence of a God.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.222)
     A reaction: No. Hume answered this, by showing how big abstract ideas are built up from experience. This is a future bishop's wish-fulfilment.
28. God / B. Proving God / 3. Proofs of Evidence / b. Teleological Proof
It has been proved that creation is the workmanship of God, from its beauty and usefulness [Berkeley]
     Full Idea: Divines and philosophers have proved beyond all controversy, from the beauty and usefulness of the several parts of creation, that it was the workmanship of God.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.198)
     A reaction: Not convincing. Beauty is probably a sublimation of sexual desire (or an echo of the human mind in the external world, in music), and utility is relative to homo sapiens, I presume.
28. God / C. Attitudes to God / 5. Atheism
Theism is supposed to make the world more intelligible - and should offer results [Harré/Madden]
     Full Idea: Theism is supposedly a positive view that renders the world more intelligible than its alternatives, and this professed programme requires the production of results.
     From: Harré,R./Madden,E.H. (Causal Powers [1975], 7.VI)
     A reaction: A nice articulation of a view of theism which will make believers wince, because Harré and Madden see it as a scientific theory, intended to explain the world. I'm with them. I see Plato's theory of Forms as a scientific theory.
29. Religion / D. Religious Issues / 3. Problem of Evil / a. Problem of Evil
Particular evils are really good when linked to the whole system of beings [Berkeley]
     Full Idea: Those particular things which, considered in themselves, appear to be evil, have the nature of good, when considered as linked with the whole system of beings.
     From: George Berkeley (The Principles of Human Knowledge [1710], §153)
     A reaction: This wildly contradicts the rest of Berkeley's philosophy, which is strictly empiricist, and rests wholly on actual experience. What experience does he have of the 'whole system of beings', and its making evil into actual good?
29. Religion / D. Religious Issues / 3. Problem of Evil / b. Human Evil
People are responsible because they have limited power, though this ultimately derives from God [Berkeley]
     Full Idea: Thinking rational beings, in the production of motions, have the use of limited powers, ultimately derived from God, but immediately under the direction of their own wills, which is sufficient to entitle them to all the guilt of their own actions.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.228)
     A reaction: An episcopal evasion. A classic attempt to have cake and eat it. Either God is in charge or he isn't.
29. Religion / D. Religious Issues / 3. Problem of Evil / d. Natural Evil
If sin is not just physical, we don't consider God the origin of sin because he causes physical events [Berkeley]
     Full Idea: If sin doth not consist of purely physical actions, the making God a cause of all such actions, is not making him the author of sin.
     From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], III p.227)
     A reaction: An equivocation. If responsibility resides in consciousness, God is presumably conscious, and we can judge the events he causes.