Combining Texts

All the ideas for 'Perception', 'Naming and Necessity lectures' and 'Essay Conc Human Understanding (2nd Ed)'

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343 ideas

1. Philosophy / E. Nature of Metaphysics / 1. Nature of Metaphysics
Maybe analysis seeks the 'nominal essence', and metaphysics seeks the 'real essence' [Locke, by Mumford]
1. Philosophy / E. Nature of Metaphysics / 2. Possibility of Metaphysics
Kripke separated semantics from metaphysics, rather than linking them, making the latter independent [Kripke, by Stalnaker]
1. Philosophy / E. Nature of Metaphysics / 4. Metaphysics as Science
I am just an under-labourer, clearing the ground in preparation for knowledge [Locke]
1. Philosophy / F. Analytic Philosophy / 4. Conceptual Analysis
Analyses of concepts using entirely different terms are very inclined to fail [Kripke]
2. Reason / A. Nature of Reason / 7. Status of Reason
Opposition to reason is mad [Locke]
2. Reason / D. Definition / 2. Aims of Definition
Some definitions aim to fix a reference rather than give a meaning [Kripke]
2. Reason / D. Definition / 5. Genus and Differentia
Genus is a partial conception of species, and species a partial idea of individuals [Locke]
2. Reason / D. Definition / 6. Definition by Essence
Maybe Locke described the real essence of a person [Locke, by Pasnau]
2. Reason / F. Fallacies / 7. Ad Hominem
Ad Hominem: press a man with the consequences of his own principle [Locke]
2. Reason / F. Fallacies / 8. Category Mistake / a. Category mistakes
Asking whether man's will is free is liking asking if sleep is fast or virtue is square [Locke]
3. Truth / A. Truth Problems / 3. Value of Truth
Nothing is so beautiful to the eye as truth is to the mind [Locke]
3. Truth / A. Truth Problems / 5. Truth Bearers
Truth only belongs to mental or verbal propositions [Locke]
It is propositions which are true or false, though it is sometimes said of ideas [Locke]
If they refer to real substances, 'man' is a true idea and 'centaur' a false one [Locke]
4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic
Syllogisms are verbal fencing, not discovery [Locke]
Many people can reason well, yet can't make a syllogism [Locke]
4. Formal Logic / D. Modal Logic ML / 1. Modal Logic
Kripke's modal semantics presupposes certain facts about possible worlds [Kripke, by Zalta]
5. Theory of Logic / C. Ontology of Logic / 3. If-Thenism
Mathematical proofs work, irrespective of whether the objects exist [Locke]
5. Theory of Logic / F. Referring in Logic / 1. Naming / a. Names
Names are rigid, making them unlike definite descriptions [Kripke, by Sainsbury]
Names are rigid designators, which designate the same object in all possible worlds [Kripke]
5. Theory of Logic / F. Referring in Logic / 1. Naming / b. Names as descriptive
A bundle of qualities is a collection of abstractions, so it can't be a particular [Kripke]
A name can still refer even if it satisfies none of its well-known descriptions [Kripke]
5. Theory of Logic / F. Referring in Logic / 1. Naming / c. Names as referential
Some references, such as 'Neptune', have to be fixed by description rather than baptism [Kripke, by Szabó]
Proper names must have referents, because they are not descriptive [Kripke, by Sainsbury]
A name's reference is not fixed by any marks or properties of the referent [Kripke]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / m. One
The idea of 'one' is the simplest, most obvious and most widespread idea [Locke]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / d. Actual infinite
If there were real infinities, you could add two together, which is ridiculous [Locke]
6. Mathematics / C. Sources of Mathematics / 1. Mathematical Platonism / b. Against mathematical platonism
Mathematics is just about ideas, so whether circles exist is irrelevant [Locke]
6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / a. Mathematical empiricism
Every simple idea we ever have brings the idea of unity along with it [Locke]
7. Existence / A. Nature of Existence / 4. Abstract Existence
General and universal are not real entities, but useful inventions of the mind, concerning words or ideas [Locke]
7. Existence / A. Nature of Existence / 6. Criterion for Existence
Existences can only be known by experience [Locke]
7. Existence / C. Structure of Existence / 6. Fundamentals / d. Logical atoms
Comparisons boil down to simple elements of sensation or reflection [Locke]
7. Existence / D. Theories of Reality / 2. Realism
God assures me of the existence of external things [Locke]
Kripke's metaphysics (essences, kinds, rigidity) blocks the slide into sociology [Kripke, by Ladyman/Ross]
7. Existence / D. Theories of Reality / 6. Physicalism
For physicalists, the only relations are spatial, temporal and causal [Robinson,H]
7. Existence / D. Theories of Reality / 10. Vagueness / c. Vagueness as ignorance
Obscure simple ideas result from poor senses, brief impressions, or poor memory [Locke]
Ideas are uncertain when they are unnamed, because too close to other ideas [Locke]
7. Existence / E. Categories / 2. Categorisation
We can't categorise things by their real essences, because these are unknown [Locke]
If we discovered real essences, we would still categorise things by the external appearance [Locke]
7. Existence / E. Categories / 5. Category Anti-Realism
There are no gaps in the continuum of nature, and everything has something closely resembling it [Locke]
8. Modes of Existence / B. Properties / 6. Categorical Properties
If reality just has relational properties, what are its substantial ontological features? [Robinson,H]
8. Modes of Existence / C. Powers and Dispositions / 1. Powers
We get the idea of power from our own actions, and the interaction of external bodies [Locke]
Power is active or passive, and has a relation to actions [Locke]
We can only know a thing's powers when we have combined it with many things [Locke]
8. Modes of Existence / C. Powers and Dispositions / 3. Powers as Derived
The essence of whiteness in a man is nothing but the power to produce the idea of whiteness [Locke]
8. Modes of Existence / C. Powers and Dispositions / 4. Powers as Essence
What is the texture - the real essence - which makes substances behave in distinct ways? [Locke]
8. Modes of Existence / C. Powers and Dispositions / 7. Against Powers
Locke explains powers, but effectively eliminates them with his talk of internal structure [Locke, by Alexander,P]
8. Modes of Existence / D. Universals / 1. Universals
Locke, Berkeley and Hume did no serious thinking about universals [Robinson,H on Locke]
8. Modes of Existence / E. Nominalism / 1. Nominalism / b. Nominalism about universals
All things that exist are particulars [Locke]
Universals do not exist, but are useful inventions of the mind, involving words or ideas [Locke]
9. Objects / A. Existence of Objects / 1. Physical Objects
Bodies distinctively have cohesion of parts, and power to communicate motion [Locke]
9. Objects / A. Existence of Objects / 5. Individuation / a. Individuation
Viewing an object at an instant, we perceive identity when we see it must be that thing and not another [Locke]
Living things retain identity through change, by a principle of organisation [Locke]
9. Objects / A. Existence of Objects / 5. Individuation / b. Individuation by properties
Kripke individuates objects by essential modal properties (and presupposes essentialism) [Kripke, by Putnam]
9. Objects / A. Existence of Objects / 5. Individuation / c. Individuation by location
A thing is individuated just by existing at a time and place [Locke]
Obviously two bodies cannot be in the same place [Locke]
9. Objects / A. Existence of Objects / 5. Individuation / e. Individuation by kind
I speak of a 'sortal' name, from the word 'sort' [Locke]
9. Objects / B. Unity of Objects / 2. Substance / a. Substance
Powers are part of our idea of substances [Locke]
9. Objects / B. Unity of Objects / 2. Substance / c. Types of substance
We can conceive of three sorts of substance: God, finite intelligence, and bodies [Locke]
We sort and name substances by nominal and not by real essence [Locke]
9. Objects / B. Unity of Objects / 2. Substance / d. Substance defined
We think of substance as experienced qualities plus a presumed substratum of support [Locke]
9. Objects / B. Unity of Objects / 2. Substance / e. Substance critique
We don't know what substance is, and only vaguely know what it does [Locke]
9. Objects / B. Unity of Objects / 3. Unity Problems / d. Coincident objects
Locke may accept coinciding material substances, such as body, man and person [Locke, by Pasnau]
9. Objects / C. Structure of Objects / 5. Composition of an Object
A mass consists of its atoms, so the addition or removal of one changes its identity [Locke]
9. Objects / C. Structure of Objects / 6. Constitution of an Object
Given that a table is made of molecules, could it not be molecular and still be this table? [Kripke]
If we imagine this table made of ice or different wood, we are imagining a different table [Kripke]
9. Objects / C. Structure of Objects / 7. Substratum
Complex ideas are collections of qualities we attach to an unknown substratum [Locke]
9. Objects / D. Essence of Objects / 1. Essences of Objects
Particular substances are coexisting ideas that seem to flow from a hidden essence [Locke]
The best I can make of real essence is figure, size and connection of solid parts [Locke]
Real essence is the constitution of the unknown parts of a body which produce its qualities [Locke]
9. Objects / D. Essence of Objects / 2. Types of Essence
Locke may distinguish real essence from internal constitution, claiming the latter is knowable [Locke, by Jones,J-E]
For Kripke, essence is origin; for Putnam, essence is properties; for Wiggins, essence is membership of a kind [Kripke, by Mautner]
9. Objects / D. Essence of Objects / 3. Individual Essences
We can conceive an individual without assigning it to a kind [Locke, by Jolley]
You can't distinguish individuals without the species as a standard [Locke]
Many individuals grouped under one name vary more than some things that have different names [Locke]
9. Objects / D. Essence of Objects / 5. Essence as Kind
Atomic number 79 is part of the nature of the gold we know [Kripke]
The less rational view of essences is that they are moulds for kinds of natural thing [Locke]
Even real essence depends on a sort, since it is sorts which have the properties [Locke]
If every sort has its real essence, one horse, being many sorts, will have many essences [Locke]
9. Objects / D. Essence of Objects / 6. Essence as Unifier
Not all identity is unity of substance [Locke]
Essence is the very being of any thing, whereby it is what it is [Locke]
9. Objects / D. Essence of Objects / 7. Essence and Necessity / a. Essence as necessary properties
An essential property is true of an object in any case where it would have existed [Kripke]
De re modality is an object having essential properties [Kripke]
9. Objects / D. Essence of Objects / 7. Essence and Necessity / c. Essentials are necessary
We can only slightly know necessary co-existence of qualities, if they are primary [Locke]
9. Objects / D. Essence of Objects / 8. Essence as Explanatory
Explanatory essence won't do, because it won't distinguish the accidental from the essential [Locke, by Pasnau]
9. Objects / D. Essence of Objects / 9. Essence and Properties
Lockean real essence makes a thing what it is, and produces its observable qualities [Locke, by Jones,J-E]
Locke's essences determine the other properties, so the two will change together [Locke, by Copi]
It is impossible for two things with the same real essence to differ in properties [Locke]
We cannot know what properties are necessary to gold, unless we first know its real essence [Locke]
Important properties of an object need not be essential to it [Kripke]
9. Objects / D. Essence of Objects / 10. Essence as Species
In our ideas, the idea of essence is inseparable from the concept of a species [Locke]
If we based species on real essences, the individuals would be as indistinguishable as two circles [Locke]
Internal constitution doesn't decide a species; should a watch contain four wheels or five? [Locke]
Kripke says internal structure fixes species; I say it is genetic affinity and a common descent [Kripke, by Dummett]
Given that Nixon is indeed a human being, that he might not have been does not concern knowledge [Kripke]
9. Objects / D. Essence of Objects / 11. Essence of Artefacts
Artificial things like watches and pistols have distinct kinds [Locke]
9. Objects / D. Essence of Objects / 13. Nominal Essence
Real essence explains observable qualities, but not what kind of thing it is [Locke, by Jones,J-E]
If essence is 'nominal', artificial gold (with its surface features) would qualify as 'gold' [Locke, by Eagle]
'Nominal essence' is everything contained in the idea of a particular sort of thing [Locke, by Copi]
The observable qualities are never the real essence, since they depend on real essence [Locke]
In nominal essence, Locke confuses the set of properties with the abstracted idea of them [Eagle on Locke]
To be a nominal essence, a complex idea must exhibit unity [Locke]
Locke's real and nominal essence refers back to Aristotle's real and nominal definitions [Locke, by Jones,J-E]
Nominal Essence is the abstract idea to which a name is attached [Locke]
Essences relate to sorting words; if you replace those with names, essences vanish [Locke]
Real essences are unknown, so only the nominal essence connects things to a species [Locke]
Our ideas of substance are based on mental archetypes, but these come from the world [Locke]
For 'all gold is malleable' to be necessary, it must be part of gold's nominal essence [Locke]
9. Objects / D. Essence of Objects / 14. Knowledge of Essences
The essence of a triangle is simple; presumably substance essences are similar [Locke]
A space between three lines is both the nominal and real essence of a triangle, the source of its properties [Locke]
The schools recognised that they don't really know essences, because they couldn't coin names for them [Locke]
Kripke claims that some properties, only knowable posteriori, are known a priori to be essential [Kripke, by Soames]
An essence is the necessary properties, derived from an intuitive identity, in origin, type and material [Kripke, by Witt]
9. Objects / D. Essence of Objects / 15. Against Essentialism
There are no independent natural kinds - or our classifications have to be subjective [Locke, by Jolley]
We know five properties of gold, but cannot use four of them to predict the fifth one [Locke]
9. Objects / E. Objects over Time / 1. Objects over Time
Identity means that the idea of a thing remains the same over time [Locke]
No one seems to know the identity conditions for a material object (or for people) over time [Kripke]
9. Objects / E. Objects over Time / 7. Intermittent Objects
One thing cannot have two beginnings of existence, nor two things one beginning [Locke]
9. Objects / E. Objects over Time / 12. Origin as Essential
If we lose track of origin, how do we show we are maintaining a reference? [Kripke, by Wiggins]
Kripke argues, of the Queen, that parents of an organism are essentially so [Kripke, by Forbes,G]
Could the actual Queen have been born of different parents? [Kripke]
Socrates can't have a necessary origin, because he might have had no 'origin' [Lowe on Kripke]
9. Objects / F. Identity among Objects / 3. Relative Identity
Same person, man or substance are different identities, belonging to different ideas [Locke]
9. Objects / F. Identity among Objects / 5. Self-Identity
Two things can't occupy one place and time, which leads us to the idea of self-identity [Locke]
9. Objects / F. Identity among Objects / 6. Identity between Objects
Identity statements can be contingent if they rely on descriptions [Kripke]
If Hesperus and Phosophorus are the same, they can't possibly be different [Kripke]
10. Modality / A. Necessity / 2. Nature of Necessity
Kripke says his necessary a posteriori examples are known a priori to be necessary [Kripke, by Mackie,P]
10. Modality / A. Necessity / 7. Natural Necessity
Instead of being regularities, maybe natural laws are the weak a posteriori necessities of Kripke [Kripke, by Psillos]
Physical necessity may be necessity in the highest degree [Kripke]
10. Modality / D. Knowledge of Modality / 1. A Priori Necessary
Kripke separates necessary and a priori, proposing necessary a posteriori and contingent a priori examples [Kripke, by O'Grady]
A priori = Necessary because we imagine all worlds, and we know without looking at actuality? [Kripke]
Some of our ideas contain relations which we cannot conceive to be absent [Locke]
10. Modality / D. Knowledge of Modality / 2. A Priori Contingent
The meter is defined necessarily, but the stick being one meter long is contingent a priori [Kripke]
10. Modality / D. Knowledge of Modality / 3. A Posteriori Necessary
"'Hesperus' is 'Phosphorus'" is necessarily true, if it is true, but not known a priori [Kripke]
Theoretical identities are between rigid designators, and so are necessary a posteriori [Kripke]
Kripke has demonstrated that some necessary truths are only knowable a posteriori [Kripke, by Chalmers]
10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / a. Conceivable as possible
Kripke's essentialist necessary a posteriori opened the gap between conceivable and really possible [Soames on Kripke]
Kripke gets to the necessary a posteriori by only allowing conceivability when combined with actuality [Kripke, by Soames]
10. Modality / E. Possible worlds / 2. Nature of Possible Worlds / a. Nature of possible worlds
Possible worlds aren't puzzling places to learn about, but places we ourselves describe [Kripke]
10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity
If we discuss what might have happened to Nixon, we stipulate that it is about Nixon [Kripke]
Transworld identification is unproblematic, because we stipulate that we rigidly refer to something [Kripke]
A table in some possible world should not even be identified by its essential properties [Kripke]
Identification across possible worlds does not need properties, even essential ones [Kripke]
10. Modality / E. Possible worlds / 3. Transworld Objects / b. Rigid designation
Test for rigidity by inserting into the sentence 'N might not have been N' [Kripke, by Lycan]
Kripke avoids difficulties of transworld identity by saying it is a decision, not a discovery [Kripke, by Jacquette]
Saying that natural kinds are 'rigid designators' is the same as saying they are 'indexical' [Kripke, by Putnam]
If Kripke names must still denote a thing in a non-actual situation, the statue isn't its clay [Gibbard on Kripke]
A rigid expression may refer at a world to an object not existing in that world [Kripke, by Sainsbury]
We do not begin with possible worlds and place objects in them; we begin with objects in the real world [Kripke]
It is a necessary truth that Elizabeth II was the child of two particular parents [Kripke]
10. Modality / E. Possible worlds / 3. Transworld Objects / e. Possible Objects
That there might have been unicorns is false; we don't know the circumstances for unicorns [Kripke]
11. Knowledge Aims / A. Knowledge / 1. Knowledge
Our knowledge falls short of the extent of our own ideas [Locke]
11. Knowledge Aims / A. Knowledge / 4. Belief / d. Cause of beliefs
When two ideas agree in my mind, I cannot refuse to see and know it [Locke]
11. Knowledge Aims / B. Certain Knowledge / 1. Certainty
The greatest certainty is knowing our own ideas, and that two ideas are different [Locke]
General certainty is only found in ideas [Locke]
11. Knowledge Aims / B. Certain Knowledge / 3. Fallibilism
Knowledge by senses is less certain than that by intuition or reason, but it is still knowledge [Locke]
11. Knowledge Aims / B. Certain Knowledge / 4. The Cogito
I am as certain of the thing doubting, as I am of the doubt [Locke]
11. Knowledge Aims / C. Knowing Reality / 1. Perceptual Realism / a. Naïve realism
When a red object is viewed, the air in between does not become red [Robinson,H]
11. Knowledge Aims / C. Knowing Reality / 1. Perceptual Realism / c. Representative realism
Representative realists believe that laws of phenomena will apply to the physical world [Robinson,H]
Representative realists believe some properties of sense-data are shared by the objects themselves [Robinson,H]
11. Knowledge Aims / C. Knowing Reality / 2. Phenomenalism
Phenomenalism can be theistic (Berkeley), or sceptical (Hume), or analytic (20th century) [Robinson,H]
12. Knowledge Sources / A. A Priori Knowledge / 1. Nature of the A Priori
Kripke has breathed new life into the a priori/a posteriori distinction [Kripke, by Lowe]
Rather than 'a priori truth', it is best to stick to whether some person knows it on a priori evidence [Kripke]
A priori truths can be known independently of experience - but they don't have to be [Kripke]
12. Knowledge Sources / A. A Priori Knowledge / 3. Innate Knowledge / a. Innate knowledge
Innate ideas are trivial (if they are just potentials) or absurd (if they claim infants know a lot) [Locke, by Jolley]
If the only test of innateness is knowing, then all of our knowledge is innate [Locke]
A proposition can't be in the mind if we aren't conscious of it [Locke]
Innate ideas were followed up with innate doctrines, which stopped reasoning and made social control possible [Locke]
12. Knowledge Sources / A. A Priori Knowledge / 3. Innate Knowledge / c. Tabula rasa
The senses first let in particular ideas, which furnish the empty cabinet [Locke]
The mind is white paper, with no writing, or ideas [Locke]
The mind is a blank page, on which only experience can write [Locke]
12. Knowledge Sources / A. A Priori Knowledge / 8. A Priori as Analytic
Kripke was more successful in illuminating necessity than a priority (and their relations to analyticity) [Kripke, by Soames]
Analytic judgements are a priori, even when their content is empirical [Kripke]
12. Knowledge Sources / A. A Priori Knowledge / 10. A Priori as Subjective
The mind cannot produce simple ideas [Locke]
12. Knowledge Sources / B. Perception / 1. Perception
Can we reduce perception to acquisition of information, which is reduced to causation or disposition? [Robinson,H]
Would someone who recovered their sight recognise felt shapes just by looking? [Robinson,H]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / a. Qualities in perception
A 'quality' is a power to produce an idea in our minds [Locke]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / b. Primary/secondary
Hands can report conflicting temperatures, but not conflicting shapes [Locke]
We can't know how primary and secondary qualities connect together [Locke]
Secondary qualities have one sensory mode, but primary qualities can have more [Robinson,H]
Colours, smells and tastes are ideas; the secondary qualities have no colour, smell or taste [Locke, by Alexander,P]
Secondary qualities are powers of complex primary qualities to produce sensations in us [Locke]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / c. Primary qualities
Locke believes matter is an inert, senseless substance, with extension, figure and motion [Locke, by Berkeley]
Qualities are named as primary if they are needed for scientific explanation [Locke, by Alexander,P]
Primary qualities produce simple ideas, such as solidity, extension, motion and number [Locke]
Ideas of primary qualities resemble their objects, but those of secondary qualities don't [Locke]
In Locke, the primary qualities are also powers [Locke, by Heil]
We say objects possess no intrinsic secondary qualities because physicists don't need them [Robinson,H]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities
In my view Locke's 'textures' are groups of corpuscles which are powers (rather than 'having' powers) [Locke, by Alexander,P]
I suspect that Locke did not actually believe colours are 'in the mind' [Locke, by Heil]
Secondary qualities are simply the bare powers of an object [Locke]
If objects are not coloured, and neither are sense-contents, we are left saying that nothing is coloured [Robinson,H]
Shape can be experienced in different ways, but colour and sound only one way [Robinson,H]
If secondary qualities match senses, would new senses create new qualities? [Robinson,H]
12. Knowledge Sources / B. Perception / 3. Representation
Most moderate empiricists adopt Locke's representative theory of perception [Robinson,H]
12. Knowledge Sources / B. Perception / 4. Sense Data / a. Sense-data theory
Sense-data leads to either representative realism or phenomenalism or idealism [Robinson,H]
12. Knowledge Sources / B. Perception / 4. Sense Data / b. Nature of sense-data
Sense-data do not have any intrinsic intentionality [Robinson,H]
For idealists and phenomenalists sense-data are in objects; representative realists say they resemble objects [Robinson,H]
12. Knowledge Sources / B. Perception / 4. Sense Data / d. Sense-data problems
Sense-data are rejected because they are a veil between us and reality, leading to scepticism [Robinson,H]
12. Knowledge Sources / B. Perception / 6. Inference in Perception
Molyneux's Question: could a blind man distinguish cube from sphere, if he regained his sight? [Locke]
12. Knowledge Sources / B. Perception / 8. Adverbial Theory
'Sense redly' sounds peculiar, but 'senses redly-squarely tablely' sounds far worse [Robinson,H]
Adverbialism sees the contents of sense-experience as modes, not objects [Robinson,H]
If there are only 'modes' of sensing, then an object can no more be red or square than it can be proud or lazy. [Robinson,H]
12. Knowledge Sources / D. Empiricism / 1. Empiricism
All the ideas written on the white paper of the mind can only come from one place - experience [Locke]
12. Knowledge Sources / D. Empiricism / 2. Associationism
Some ideas connect together naturally, while others connect by chance or custom [Locke]
The constant link between whiteness and things that produce it is the basis of our knowledge [Locke]
Knowledge is just the connection or disagreement of our ideas [Locke]
12. Knowledge Sources / D. Empiricism / 4. Pro-Empiricism
The absolute boundaries of our thought are the ideas we get from senses and the mind [Locke]
12. Knowledge Sources / D. Empiricism / 5. Empiricism Critique
It is unclear how identity, equality, perfection, God, power and cause derive from experience [Locke, by Dancy,J]
12. Knowledge Sources / E. Direct Knowledge / 2. Intuition
Intuition gives us direct and certain knowledge of what is obvious [Locke]
Intuition is the strongest possible evidence one can have about anything [Kripke]
13. Knowledge Criteria / A. Justification Problems / 1. Justification / b. Need for justification
Believing without a reason may just be love of your own fantasies [Locke]
13. Knowledge Criteria / B. Internal Justification / 5. Coherentism / a. Coherence as justification
Facts beyond immediate experience are assessed by agreement with known truths and observations [Locke]
13. Knowledge Criteria / C. External Justification / 1. External Justification
For Locke knowledge relates to objects, not to propositions [Locke, by Rorty]
13. Knowledge Criteria / C. External Justification / 8. Social Justification
Other men's opinions don't add to our knowledge - even when they are true [Locke]
13. Knowledge Criteria / D. Scepticism / 6. Scepticism Critique
Locke has no patience with scepticism [Locke, by Robinson,H]
14. Science / B. Scientific Theories / 1. Scientific Theory
Identities like 'heat is molecule motion' are necessary (in the highest degree), not contingent [Kripke]
14. Science / D. Explanation / 1. Explanation / b. Aims of explanation
An explanation presupposes something that is improbable unless it is explained [Robinson,H]
If all possibilities are equal, order seems (a priori) to need an explanation - or does it? [Robinson,H]
14. Science / D. Explanation / 2. Types of Explanation / k. Explanations by essence
Locke seems to use real essence for scientific explanation, and substratum for the being of a thing [Locke, by Jones,J-E]
To explain qualities, Locke invokes primary and secondary qualities, not real essences [Locke, by Jones,J-E]
Gold is supposed to have a real essence, from whence its detectable properties flow [Locke]
15. Nature of Minds / A. Nature of Mind / 4. Other Minds / c. Knowing other minds
We are satisfied that other men have minds, from their words and actions [Locke]
15. Nature of Minds / A. Nature of Mind / 7. Animal Minds
Unlike humans, animals cannot entertain general ideas [Locke]
15. Nature of Minds / B. Features of Minds / 1. Consciousness / f. Higher-order thought
Consciousness is the perception of what passes in a man's own mind [Locke]
15. Nature of Minds / B. Features of Minds / 2. Unconscious Mind
If we aren't aware that an idea is innate, the concept of innate is meaningless; if we do, all ideas seem innate [Locke]
15. Nature of Minds / B. Features of Minds / 4. Intentionality / a. Nature of intentionality
If intentional states are intrinsically about other things, what are their own properties? [Robinson,H]
15. Nature of Minds / B. Features of Minds / 6. Inverted Qualia
There is nothing illogical about inverted qualia [Locke]
The same object might produce violet in one mind and marigold in another [Locke]
15. Nature of Minds / C. Capacities of Minds / 2. Imagination
Locke's view that thoughts are made of ideas asserts the crucial role of imagination [Locke]
15. Nature of Minds / C. Capacities of Minds / 4. Objectification
Every external object or internal idea suggests to us the idea of unity [Locke]
The mind can make a unity out of anything, no matter how diverse [Locke]
15. Nature of Minds / C. Capacities of Minds / 5. Generalisation by mind
The mind creates abstractions by generalising about appearances of objects, ignoring time or place [Locke]
General words represent general ideas, which are abstractions from immediate circumstances [Locke]
15. Nature of Minds / C. Capacities of Minds / 8. Remembering Contiguity
If a man sees a friend die in a room, he associates the pain with the room [Locke]
16. Persons / A. Concept of a Person / 1. Existence of Persons
Locke uses 'self' for a momentary entity, and 'person' for an extended one [Locke, by Martin/Barresi]
A person is intelligent, rational, self-aware, continuous, conscious [Locke]
16. Persons / A. Concept of a Person / 2. Persons as Responsible
Someone mad then sane is two persons, judging by our laws and punishments [Locke]
'Person' is a term used about responsibility, involving law, and happiness and misery [Locke]
16. Persons / B. Nature of the Self / 1. Self and Consciousness
Our personal identity must depend on something we are aware of, namely consciousness [Locke]
My little finger is part of me if I am conscious of it [Locke]
16. Persons / D. Continuity of the Self / 2. Mental Continuity / a. Memory is Self
Personal identity is my perceptions, but not my memory, as I forget too much [Ayer on Locke]
Locke's theory confusingly tries to unite consciousness and memory [Reid on Locke]
Locke mistakes similarity of a memory to its original event for identity [Reid on Locke]
Identity over time involves remembering actions just as they happened [Locke]
Should we punish people who commit crimes in their sleep? [Locke]
16. Persons / D. Continuity of the Self / 2. Mental Continuity / b. Self as mental continuity
For Locke, conscious awareness unifies a person at an instant and over time [Locke, by Martin/Barresi]
If the soul individuates a man, and souls are transferable, then a hog could be a man [Locke]
Identity must be in consciousness not substance, because it seems transferable [Locke]
If someone becomes conscious of Nestor's actions, then he is Nestor [Locke]
If a prince's soul entered a cobbler's body, the person would be the prince (and the man the cobbler) [Locke]
On Judgement Day, no one will be punished for actions they cannot remember [Locke]
Locke sees underlying substance as irrelevant to personal identity [Locke, by Noonan]
16. Persons / D. Continuity of the Self / 2. Mental Continuity / c. Inadequacy of mental continuity
Locke implies that each thought has two thinkers - me, and 'my' substance [Merricks on Locke]
Two persons might have qualitatively identical consciousnesses, so that isn't enough [Kant on Locke]
Locke's move from substance to consciousness is a slippery slope [Butler on Locke]
No two thoughts at different times can be the same, as they have different beginnings [Locke]
Locke confuses the test for personal identity with the thing itself [Reid on Locke]
If consciousness is interrupted, and we forget our past selves, are we still the same thinking thing? [Locke]
If identity is consciousness, could a person move between bodies or fragment into parts? [Reid on Locke]
Locke's memory theory of identity confuses personal identity with the test for it [Reid on Locke]
Butler thought Locke's theory was doomed once he rejected mental substance [Perry on Locke]
16. Persons / E. Rejecting the Self / 1. Self as Indeterminate
Nothing about me is essential [Locke]
16. Persons / F. Free Will / 1. Nature of Free Will
We are free to decide not to follow our desires [Locke]
16. Persons / F. Free Will / 5. Against Free Will
Men are not free to will, because they cannot help willing [Locke]
16. Persons / F. Free Will / 7. Compatibilism
Liberty is a power of agents, so can't be an attribute of wills [Locke]
A man is free insofar as he can act according to his own preferences [Locke]
17. Mind and Body / A. Mind-Body Dualism / 7. Zombies
It seems logically possible to have the pain brain state without the actual pain [Kripke]
17. Mind and Body / A. Mind-Body Dualism / 8. Dualism of Mind Critique
For all we know, an omnipotent being might have enabled material beings to think [Locke]
17. Mind and Body / D. Property Dualism / 6. Mysterianism
Thinking without matter and matter that thinks are equally baffling [Locke]
We can't begin to conceive what would produce some particular experience within our minds [Locke]
Thoughts moving bodies, and bodies producing thoughts, are equally unknowable [Locke]
17. Mind and Body / E. Mind as Physical / 1. Physical Mind
Physicalism cannot allow internal intentional objects, as brain states can't be 'about' anything [Robinson,H]
Kripke assumes that mind-brain identity designates rigidly, which it doesn't [Armstrong on Kripke]
17. Mind and Body / E. Mind as Physical / 7. Anti-Physicalism / e. Modal argument
If consciousness could separate from brain, then it cannot be identical with brain [Kripke, by Papineau]
Kripke says pain is necessarily pain, but a brain state isn't necessarily painful [Kripke, by Rey]
Identity must be necessary, but pain isn't necessarily a brain state, so they aren't identical [Kripke, by Schwartz,SP]
Identity theorists seem committed to no-brain-event-no-pain, and vice versa, which seems wrong [Kripke]
18. Thought / A. Modes of Thought / 8. Human Thought
For Locke, abstract ideas are our main superiority of understanding over animals [Locke, by Berkeley]
18. Thought / C. Content / 2. Ideas
Complex ideas are all resolvable into simple ideas [Locke]
The word 'idea' covers thinking best, for imaginings, concepts, and basic experiences [Locke]
Ideas are the objects of understanding when we think [Locke]
18. Thought / D. Concepts / 2. Origin of Concepts / b. Empirical concepts
All our ideas derive either from sensation, or from inner reflection [Locke]
Simple ideas are produced in us by external things, and they match their appearances [Locke]
18. Thought / D. Concepts / 2. Origin of Concepts / c. Nativist concepts
Innate ideas are nothing, if they are in the mind but we are unaware of them [Locke]
18. Thought / E. Abstraction / 1. Abstract Thought
A species of thing is an abstract idea, and a word is a sign that refers to the idea [Locke]
19. Language / A. Nature of Meaning / 2. Meaning as Mental
Words were devised as signs for inner ideas, and their basic meaning is those ideas [Locke]
Words stand for the ideas in the mind of him that uses them [Locke]
19. Language / B. Reference / 3. Direct Reference / a. Direct reference
Kripke has a definitional account of kinds, but not of naming [Almog on Kripke]
Kripke derives accounts of reference and proper names from assumptions about worlds and essences [Stalnaker on Kripke]
19. Language / B. Reference / 3. Direct Reference / b. Causal reference
The important cause is not between dubbing and current use, but between the item and the speaker's information [Evans on Kripke]
We may refer through a causal chain, but still change what is referred to [Kripke]
19. Language / B. Reference / 3. Direct Reference / c. Social reference
For the correct reference of complex ideas, we can only refer to experts [Locke]
Kripke makes reference a largely social matter, external to the mind of the speaker [Kripke, by McGinn]
Kripke's theory is important because it gives a collective account of reference [Kripke, by Putnam]
We refer through the community, going back to the original referent [Kripke]
19. Language / B. Reference / 4. Descriptive Reference / b. Reference by description
Descriptive reference shows how to refer, how to identify two things, and how to challenge existence [Kripke, by PG]
It can't be necessary that Aristotle had the properties commonly attributed to him [Kripke]
19. Language / C. Assigning Meanings / 10. Two-Dimensional Semantics
Rigid designation creates a puzzle - why do some necessary truths appear to be contingent? [Kripke, by Macià/Garcia-Carpentiro]
19. Language / F. Communication / 4. Private Language
Since words are just conventional, we can represent our own ideas with any words we please [Locke]
22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / d. Ethical theory
There couldn't be a moral rule of which a man could not justly demand a reason [Locke]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / b. Rational ethics
Pursuit of happiness is the highest perfection of intellectual nature [Locke]
Morality can be demonstrated, because we know the real essences behind moral words [Locke]
We can demand a reason for any moral rule [Locke]
22. Metaethics / C. The Good / 2. Happiness / c. Value of happiness
A concern for happiness is the inevitable result of consciousness [Locke]
23. Ethics / A. Egoism / 2. Hedonism
Things are good and evil only in reference to pleasure and pain [Locke]
23. Ethics / C. Virtue Theory / 1. Virtue Theory / b. Basis of virtue
Actions are virtuous if they are judged praiseworthy [Locke]
25. Social Practice / C. Rights / 4. Property rights
It is certain that injustice requires property, since it is a violation of the right to property [Locke]
26. Natural Theory / A. Speculations on Nature / 1. Nature
We are so far from understanding the workings of natural bodies that it is pointless to even try [Locke]
26. Natural Theory / A. Speculations on Nature / 7. Later Matter Theories / a. Early Modern matter
I take 'matter' to be a body, excluding its extension in space and its shape [Locke]
26. Natural Theory / A. Speculations on Nature / 7. Later Matter Theories / c. Matter as extension
Locke's solidity is not matter, because that is impenetrability and hardness combined [Robinson,H]
26. Natural Theory / B. Natural Kinds / 3. Knowing Kinds
We distinguish species by their nominal essence, not by their real essence [Locke]
26. Natural Theory / B. Natural Kinds / 4. Source of Kinds
If we observe total regularity, there must be some unknown law and relationships controlling it [Locke]
26. Natural Theory / B. Natural Kinds / 5. Reference to Natural Kinds
The properties that fix reference are contingent, the properties involving meaning are necessary [Kripke]
Terms for natural kinds are very close to proper names [Kripke]
26. Natural Theory / B. Natural Kinds / 6. Necessity of Kinds
Gold's atomic number might not be 79, but if it is, could non-79 stuff be gold? [Kripke]
'Cats are animals' has turned out to be a necessary truth [Kripke]
26. Natural Theory / B. Natural Kinds / 7. Critique of Kinds
Nominal essence may well be neither necessary nor sufficient for a natural kind [Kripke, by Bird]
26. Natural Theory / C. Causation / 4. Naturalised causation
Causes are the substances which have the powers to produce action [Locke]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / a. Scientific essentialism
If we knew the minute mechanics of hemlock, we could predict that it kills men [Locke]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / b. Scientific necessity
Boyle and Locke believed corpuscular structures necessitate their powers of interaction [Locke, by Alexander,P]
The corpuscular hypothesis is the best explanation of the necessary connection and co-existence of powers [Locke]
We will only understand substance when we know the necessary connections between powers and qualities [Locke]
The scientific discovery (if correct) that gold has atomic number 79 is a necessary truth [Kripke]
Scientific discoveries about gold are necessary truths [Kripke]
Once we've found that heat is molecular motion, then that's what it is, in all possible worlds [Kripke]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / d. Knowing essences
We identify substances by supposing that groups of sensations arise from an essence [Locke]
Other spirits may exceed us in knowledge, by knowing the inward constitution of things [Locke]
Science searches basic structures in search of essences [Kripke]
27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement
Motion is just change of distance between two things [Locke]
27. Natural Reality / A. Classical Physics / 1. Mechanics / c. Forces
Boyle and Locke suspect forces of being occult [Locke, by Alexander,P]
An insurmountable force in a body keeps our hands apart when we handle it [Locke]
27. Natural Reality / C. Space / 5. Relational Space
We can locate the parts of the universe, but not the whole thing [Locke]
27. Natural Reality / D. Time / 3. Parts of Time / b. Instants
An 'instant' is where we perceive no succession, and is the time of a single idea [Locke]
27. Natural Reality / D. Time / 3. Parts of Time / d. Measuring time
We can never show that two successive periods of time were equal [Locke]
27. Natural Reality / G. Biology / 3. Evolution
It is inconceivable that unthinking matter could produce intelligence [Locke]
27. Natural Reality / G. Biology / 5. Species
Tigers may lack all the properties we originally used to identify them [Kripke]
The original concept of 'cat' comes from paradigmatic instances [Kripke]
'Tiger' designates a species, and merely looking like the species is not enough [Kripke]
28. God / A. Divine Nature / 6. Divine Morality / d. God decrees morality
The finite and dependent should obey the supreme and infinite [Locke]
28. God / B. Proving God / 1. Proof of God
God has given us no innate idea of himself [Locke]
28. God / B. Proving God / 3. Proofs of Evidence / a. Cosmological Proof
We exist, so there is Being, which requires eternal being [Locke]
28. God / B. Proving God / 3. Proofs of Evidence / e. Miracles
If miracles aim at producing belief, it is plausible that their events are very unusual [Locke]