248 ideas
| 12644 | Who cares what 'philosophy' is? Most pre-1950 thought doesn't now count as philosophy [Fodor] |
| 20349 | Metaphysics aims at the essence of things, and a system to show how this explains other truths [Richardson] |
| 20351 | Metaphysics needs systems, because analysis just obsesses over details [Richardson] |
| 20350 | Metaphysics generalises the data, to get at the ontology [Richardson] |
| 1887 | You cannot divide anything into many parts, because after the first division you are no longer dividing the original [Sext.Empiricus] |
| 12633 | Definitions often give necessary but not sufficient conditions for an extension [Fodor] |
| 2474 | It seems likely that analysis of concepts is impossible, but justification can survive without it [Fodor] |
| 22764 | Ordinary speech is not exact about what is true; we say we are digging a well before the well exists [Sext.Empiricus] |
| 2481 | Despite all the efforts of philosophers, nothing can ever be reduced to anything [Fodor] |
| 2505 | Turing invented the idea of mechanical rationality (just based on syntax) [Fodor] |
| 2463 | A standard naturalist view is realist, externalist, and computationalist, and believes in rationality [Fodor] |
| 22752 | Reasoning is impossible without a preconception [Sext.Empiricus] |
| 12619 | We have no successful definitions, because they all use indefinable words [Fodor] |
| 2470 | Transcendental arguments move from knowing Q to knowing P because it depends on Q [Fodor] |
| 1885 | Proof moves from agreed premises to a non-evident inference [Sext.Empiricus] |
| 6021 | It is only when we say a proposition that we speak truly or falsely [Sext.Empiricus] |
| 2435 | Psychology has to include the idea that mental processes are typically truth-preserving [Fodor] |
| 2442 | Inferences are surely part of the causal structure of the world [Fodor] |
| 12196 | A valid hypothetical syllogism is 'that which does not begin with a truth and end with a falsehood' [Sext.Empiricus] |
| 6020 | 'Man is a rational mortal animal' is equivalent to 'if something is a man, that thing is a rational mortal animal' [Sext.Empiricus] |
| 12664 | A truth-table, not inferential role, defines 'and' [Fodor] |
| 3005 | 'Jocasta' needs to be distinguished from 'Oedipus's mother' because they are connected by different properties [Fodor] |
| 12648 | Names in thought afford a primitive way to bring John before the mind [Fodor] |
| 12650 | 'Paderewski' has two names in mentalese, for his pianist file and his politician file [Fodor] |
| 12656 | P-and-Q gets its truth from the truth of P and truth of Q, but consistency isn't like that [Fodor] |
| 1902 | Since Socrates either died when he was alive (a contradiction) or died when he was dead (meaningless), he didn't die [Sext.Empiricus] |
| 12620 | If 'exist' is ambiguous in 'chairs and numbers exist', that mirrors the difference between chairs and numbers [Fodor] |
| 2469 | The world is full of messy small things producing stable large-scale properties (e.g. mountains) [Fodor] |
| 7014 | A particle and a coin heads-or-tails pick out to perfectly well-defined predicates and properties [Fodor] |
| 12613 | Empiricists use dispositions reductively, as 'possibility of sensation' or 'possibility of experimental result' [Fodor] |
| 2475 | Don't define something by a good instance of it; a good example is a special case of the ordinary example [Fodor] |
| 22744 | Parts are not parts if their whole is nothing more than the parts [Sext.Empiricus] |
| 22762 | Some properties are inseparable from a thing, such as the length, breadth and depth of a body [Sext.Empiricus] |
| 12653 | There's statistical, logical, nomological, conceptual and metaphysical possibility [Fodor] |
| 12651 | Some beliefs are only inferred when needed, like 'Shakespeare had not telephone' [Fodor] |
| 2502 | How do you count beliefs? [Fodor] |
| 12628 | Knowing that must come before knowing how [Fodor] |
| 1889 | If an argument has an absurd conclusion, we should not assent to the absurdity, but avoid the absurd argument [Sext.Empiricus] |
| 1871 | Whether honey is essentially sweet may be doubted, as it is a matter of judgement rather than appearance [Sext.Empiricus] |
| 2501 | Berkeley seems to have mistakenly thought that chairs are the same as after-images [Fodor] |
| 2990 | Contrary to commonsense, most of what is in the mind seems to be unlearned [Fodor] |
| 3009 | Sticklebacks have an innate idea that red things are rivals [Fodor] |
| 3008 | Evolution suggests that innate knowledge of human psychology would be beneficial [Fodor] |
| 1883 | How can the intellect know if sensation is reliable if it doesn't directly see external objects? [Sext.Empiricus] |
| 2465 | Maybe explaining the mechanics of perception will explain the concepts involved [Fodor] |
| 22748 | Some say motion is perceived by sense, but others say it is by intellect [Sext.Empiricus] |
| 2504 | Rationalism can be based on an evolved computational brain with innate structure [Fodor] |
| 2493 | According to empiricists abstraction is the fundamental mental process [Fodor] |
| 3978 | Associations are held to connect Ideas together in the way the world is connected together [Fodor] |
| 12617 | Associationism can't explain how truth is preserved [Fodor] |
| 1890 | We distinguish ambiguities by seeing what is useful [Sext.Empiricus] |
| 12625 | Pragmatism is the worst idea ever [Fodor] |
| 2494 | Rationalists say there is more to a concept than the experience that prompts it [Fodor] |
| 22759 | Fools, infants and madmen may speak truly, but do not know [Sext.Empiricus] |
| 20795 | Some things are their own criterion, such as straightness, a set of scales, or light [Sext.Empiricus] |
| 22760 | Madmen are reliable reporters of what appears to them [Sext.Empiricus] |
| 2462 | Control of belief is possible if you know truth conditions and what causes beliefs [Fodor] |
| 1870 | The basis of scepticism is the claim that every proposition has an equal opposing proposition [Sext.Empiricus] |
| 1882 | The necks of doves appear different in colour depending on the angle of viewing [Sext.Empiricus] |
| 1872 | The same tower appears round from a distance, but square close at hand [Sext.Empiricus] |
| 1873 | If we press the side of an eyeball, objects appear a different shape [Sext.Empiricus] |
| 1881 | The same oar seems bent in water and straight when out of it [Sext.Empiricus] |
| 20794 | How can sceptics show there is no criterion? Weak without, contradiction with [Sext.Empiricus] |
| 1874 | How can we judge between our impressions and those of other animals, when we ourselves are involved? [Sext.Empiricus] |
| 1878 | Water that seems lukewarm can seem very hot on inflamed skin [Sext.Empiricus] |
| 1880 | Some actions seem shameful when sober but not when drunk [Sext.Empiricus] |
| 1877 | If we had no hearing or sight, we would assume no sound or sight exists, so there may be unsensed qualities [Sext.Empiricus] |
| 1879 | Sickness is perfectly natural to the sick, so their natural perceptions should carry some weight [Sext.Empiricus] |
| 1876 | If we enjoy different things, presumably we receive different impressions [Sext.Empiricus] |
| 1910 | With us it is shameful for men to wear earrings, but among Syrians it is considered noble [Sext.Empiricus] |
| 1911 | Even if all known nations agree on a practice, there may be unknown nations which disagree [Sext.Empiricus] |
| 6026 | How can you investigate without some preconception of your object? [Sext.Empiricus] |
| 2461 | An experiment is a deliberate version of what informal thinking does all the time [Fodor] |
| 2454 | We can deliberately cause ourselves to have true thoughts - hence the value of experiments [Fodor] |
| 2455 | Interrogation and experiment submit us to having beliefs caused [Fodor] |
| 2460 | Participation in an experiment requires agreement about what the outcome will mean [Fodor] |
| 2458 | Theories are links in the causal chain between the environment and our beliefs [Fodor] |
| 1886 | If you don't view every particular, you may miss the one which disproves your universal induction [Sext.Empiricus] |
| 2503 | Empirical approaches see mind connections as mirrors/maps of reality [Fodor] |
| 2508 | The function of a mind is obvious [Fodor] |
| 12636 | Mental states have causal powers [Fodor] |
| 2994 | In CRTT thought may be represented, content must be [Fodor] |
| 2443 | I say psychology is intentional, semantics is informational, and thinking is computation [Fodor] |
| 2453 | We are probably the only creatures that can think about our own thoughts [Fodor] |
| 15473 | How does anything get outside itself? [Fodor, by Martin,CB] |
| 2485 | Do intentional states explain our behaviour? [Fodor] |
| 2981 | Is intentionality outwardly folk psychology, inwardly mentalese? [Lyons on Fodor] |
| 15494 | We can't use propositions to explain intentional attitudes, because they would need explaining [Fodor] |
| 7326 | Intentionality doesn't go deep enough to appear on the physicists' ultimate list of things [Fodor] |
| 3976 | Intentional science needs objects with semantic and causal properties, and which obey laws [Fodor] |
| 3980 | Intentional states and processes may be causal relations among mental symbols [Fodor] |
| 22746 | If we try to conceive of a line with no breadth, it ceases to exist, and so has no length [Sext.Empiricus] |
| 12661 | The different types of resemblance don't resemble one another [Fodor] |
| 2506 | If I have a set of mental modules, someone had better be in charge of them! [Fodor] |
| 2446 | Cartesians consider interaction to be a miracle [Fodor] |
| 2445 | Semantics v syntax is the interaction problem all over again [Fodor] |
| 2599 | Either intentionality causes things, or epiphenomenalism is true [Fodor] |
| 3001 | Behaviourism has no theory of mental causation [Fodor] |
| 2467 | Functionalists see pains as properties involving relations and causation [Fodor] |
| 12632 | In the Representational view, concepts play the key linking role [Fodor] |
| 2993 | Any piece of software can always be hard-wired [Fodor] |
| 3011 | Causal powers must be a crucial feature of mental states [Fodor] |
| 5498 | Mind is a set of hierarchical 'homunculi', which are made up in turn from subcomponents [Fodor, by Lycan] |
| 2597 | Contrary to the 'anomalous monist' view, there may well be intentional causal laws [Fodor] |
| 2489 | Why bother with neurons? You don't explain bird flight by examining feathers [Fodor] |
| 2985 | Are beliefs brains states, but picked out at a "higher level"? [Lyons on Fodor] |
| 22741 | The incorporeal is not in the nature of body, and so could not emerge from it [Sext.Empiricus] |
| 2995 | Supervenience gives good support for mental causation [Fodor] |
| 2464 | Type physicalism equates mental kinds with physical kinds [Fodor] |
| 2468 | Type physicalism is a stronger claim than token physicalism [Fodor] |
| 2490 | Modern connectionism is just Hume's theory of the 'association' of 'ideas' [Fodor] |
| 12624 | Only the labels of nodes have semantic content in connectionism, and they play no role [Fodor] |
| 2447 | Hume has no theory of the co-ordination of the mind [Fodor] |
| 2991 | Hume's associationism offers no explanation at all of rational thought [Fodor] |
| 3002 | If mind is just physical, how can it follow the rules required for intelligent thought? [Fodor] |
| 2598 | Lots of physical properties are multiply realisable, so why shouldn't beliefs be? [Fodor] |
| 3981 | Most psychological properties seem to be multiply realisable [Fodor] |
| 2476 | The goal of thought is to understand the world, not instantly sort it into conceptual categories [Fodor] |
| 12640 | Associative thinking avoids syntax, but can't preserve sense, reference or truth [Fodor] |
| 2992 | We may be able to explain rationality mechanically [Fodor] |
| 12641 | Connectionism gives no account of how constituents make complex concepts [Fodor] |
| 2440 | Propositional attitudes are propositions presented in a certain way [Fodor] |
| 2988 | Folk psychology is the only explanation of behaviour we have [Fodor] |
| 3975 | Folk psychology explains behaviour by reference to intentional states like belief and desire [Fodor] |
| 2450 | Rationality has mental properties - autonomy, productivity, experiment [Fodor] |
| 1884 | If we utter three steps of a logical argument, they never exist together [Sext.Empiricus] |
| 2507 | Rationality rises above modules [Fodor] |
| 2498 | Modules make the world manageable [Fodor] |
| 2500 | Babies talk in consistent patterns [Fodor] |
| 2499 | Modules analyse stimuli, they don't tell you what to do [Fodor] |
| 2496 | Blindness doesn't destroy spatial concepts [Fodor] |
| 2497 | Something must take an overview of the modules [Fodor] |
| 2509 | Modules have in-built specialist information [Fodor] |
| 22186 | Mental modules are specialised, automatic, and isolated [Fodor, by Okasha] |
| 2491 | Modules have encapsulation, inaccessibility, private concepts, innateness [Fodor] |
| 2495 | Obvious modules are language and commonsense explanation [Fodor] |
| 2483 | Mentalese doesn't require a theory of meaning [Fodor] |
| 2480 | Language is ambiguous, but thought isn't [Fodor] |
| 2487 | Mentalese may also incorporate some natural language [Fodor] |
| 3010 | Belief and desire are structured states, which need mentalese [Fodor] |
| 12643 | Ambiguities in English are the classic reason for claiming that we don't think in English [Fodor] |
| 8090 | Since the language of thought is the same for all, it must be something like logical form [Fodor, by Devlin] |
| 2604 | We must have expressive power BEFORE we learn language [Fodor] |
| 12647 | Mental representations name things in the world, but also files in our memory [Fodor] |
| 12649 | We think in file names [Fodor] |
| 3135 | Is thought a syntactic computation using representations? [Fodor, by Rey] |
| 12655 | Frame Problem: how to eliminate most beliefs as irrelevant, without searching them? [Fodor] |
| 2983 | Maybe narrow content is physical, broad content less so [Lyons on Fodor] |
| 12615 | Mental representations are the old 'Ideas', but without images [Fodor] |
| 2437 | XYZ (Twin Earth 'water') is an impossibility [Fodor] |
| 12630 | If concept content is reference, then my Twin and I are referring to the same stuff [Fodor] |
| 2441 | Truth conditions require a broad concept of content [Fodor] |
| 3982 | How could the extrinsic properties of thoughts supervene on their intrinsic properties? [Fodor] |
| 2999 | Obsession with narrow content leads to various sorts of hopeless anti-realism [Fodor] |
| 3114 | Concepts aren't linked to stuff; they are what is caused by stuff [Fodor] |
| 2486 | Content can't be causal role, because causal role is decided by content [Fodor] |
| 3012 | Do identical thoughts have identical causal roles? [Fodor] |
| 2452 | Knowing the cause of a thought is almost knowing its content [Fodor] |
| 2432 | Is content basically information, fixed externally? [Fodor] |
| 12658 | Nobody knows how concepts are acquired [Fodor] |
| 22763 | We can only dream of a winged man if we have experienced men and some winged thing [Sext.Empiricus] |
| 2492 | Experience can't explain itself; the concepts needed must originate outside experience [Fodor] |
| 11143 | If concept-learning is hypothesis-testing, that needs innate concepts to get started [Fodor, by Margolis/Laurence] |
| 6650 | Fodor is now less keen on the innateness of concepts [Fodor, by Lowe] |
| 12662 | We have an innate capacity to form a concept, once we have grasped the stereotype [Fodor] |
| 12618 | It is essential to the concept CAT that it be satisfied by cats [Fodor] |
| 12635 | Having a concept isn't a pragmatic matter, but being able to think about the concept [Fodor] |
| 12652 | Concepts have two sides; they are files that face thought, and also face subject-matter [Fodor] |
| 12626 | Cartesians put concept individuation before concept possession [Fodor] |
| 2438 | In the information view, concepts are potentials for making distinctions [Fodor] |
| 12614 | I prefer psychological atomism - that concepts are independent of epistemic capacities [Fodor] |
| 2471 | Are concepts best seen as capacities? [Fodor] |
| 2472 | For Pragmatists having a concept means being able to do something [Fodor] |
| 12637 | Frege's puzzles suggest to many that concepts have sense as well as reference [Fodor] |
| 12638 | If concepts have sense, we can't see the connection to their causal powers [Fodor] |
| 12639 | Belief in 'senses' may explain intentionality, but not mental processes [Fodor] |
| 12654 | You can't think 'brown dog' without thinking 'brown' and 'dog' [Fodor] |
| 12621 | Definable concepts have constituents, which are necessary, individuate them, and demonstrate possession [Fodor] |
| 12622 | Many concepts lack prototypes, and complex prototypes aren't built from simple ones [Fodor] |
| 12659 | Maybe stereotypes are a stage in concept acquisition (rather than a by-product) [Fodor] |
| 12660 | One stereotype might be a paradigm for two difference concepts [Fodor] |
| 12623 | The theory theory can't actually tell us what concepts are [Fodor] |
| 12629 | For the referential view of thought, the content of a concept is just its reference [Fodor] |
| 12631 | Compositionality requires that concepts be atomic [Fodor] |
| 12657 | Abstractionism claims that instances provide criteria for what is shared [Fodor] |
| 2439 | Semantic externalism says the concept 'elm' needs no further beliefs or inferences [Fodor] |
| 2457 | If meaning is information, that establishes the causal link between the state of the world and our beliefs [Fodor] |
| 2998 | Grice thinks meaning is inherited from the propositional attitudes which sentences express [Fodor] |
| 2482 | It seems unlikely that meaning can be reduced to communicative intentions, or any mental states [Fodor] |
| 3006 | Whatever in the mind delivers falsehood is parasitic on what delivers truth [Fodor] |
| 2451 | To know the content of a thought is to know what would make it true [Fodor] |
| 3007 | Many different verification procedures can reach 'star', but it only has one semantic value [Fodor] |
| 3004 | The meaning of a sentence derives from its use in expressing an attitude [Fodor] |
| 3000 | Meaning holism is a crazy doctrine [Fodor] |
| 2433 | For holists no two thoughts are ever quite the same, which destroys faith in meaning [Fodor] |
| 2477 | If to understand "fish" you must know facts about them, where does that end? [Fodor] |
| 3003 | Very different mental states can share their contents, so content doesn't seem to be constructed from functional role [Fodor] |
| 12634 | 'Inferential-role semantics' says meaning is determined by role in inference [Fodor] |
| 2996 | Mental states may have the same content but different extensions [Fodor] |
| 12642 | Co-referring terms differ if they have different causal powers [Fodor] |
| 12663 | We refer to individuals and to properties, and we use singular terms and predicates [Fodor] |
| 2436 | It is claimed that reference doesn't fix sense (Jocasta), and sense doesn't fix reference (Twin Earth) [Fodor] |
| 2434 | Broad semantics holds that the basic semantic properties are truth and denotation [Fodor] |
| 12616 | English has no semantic theory, just associations between sentences and thoughts [Fodor] |
| 12645 | Semantics (esp. referential semantics) allows inferences from utterances to the world [Fodor] |
| 12646 | Semantics relates to the world, so it is never just psychological [Fodor] |
| 2459 | Externalist semantics are necessary to connect the contents of beliefs with how the world is [Fodor] |
| 2473 | Analysis is impossible without the analytic/synthetic distinction [Fodor] |
| 2484 | The theory of the content of thought as 'Mentalese' explains why the Private Language Argument doesn't work [Fodor] |
| 12627 | Before you can plan action, you must decide on the truth of your estimate of success [Fodor] |
| 22754 | Saying the good is useful or choiceworth or happiness-creating is not the good, but a feature of it [Sext.Empiricus] |
| 22755 | Like a warming fire, what is good by nature should be good for everyone [Sext.Empiricus] |
| 22756 | If a desire is itself desirable, then we shouldn't desire it, as achieving it destroys it [Sext.Empiricus] |
| 6032 | Right actions, once done, are those with a reasonable justification [Sext.Empiricus] |
| 20356 | Humans dominate because, unlike other animals, they have a synthesis of conflicting drives [Richardson] |
| 1517 | The tektraktys (1+2+3+4=10) is the 'fount of ever-flowing nature' [Sext.Empiricus] |
| 1894 | Some say that causes are physical, some say not [Sext.Empiricus] |
| 1897 | Knowing an effect results from a cause means knowing that the cause belongs with the effect, which is circular [Sext.Empiricus] |
| 1898 | Cause can't exist before effect, or exist at the same time, so it doesn't exist [Sext.Empiricus] |
| 20366 | A mind that could see cause and effect as a continuum would deny cause and effect [Richardson] |
| 1896 | If there were no causes then everything would have been randomly produced by everything [Sext.Empiricus] |
| 1895 | Causes are either equal to the effect, or they link equally with other causes, or they contribute slightly [Sext.Empiricus] |
| 3977 | Laws are true generalisations which support counterfactuals and are confirmed by instances [Fodor] |
| 1901 | If all atoms, times and places are the same, everything should move with equal velocity [Sext.Empiricus] |
| 22747 | A man walking backwards on a forwards-moving ship is moving in a fixed place [Sext.Empiricus] |
| 1899 | Does the original self-mover push itself from behind, or pull itself from in front? [Sext.Empiricus] |
| 1900 | If time and place are infinitely divided, it becomes impossible for movement ever to begin [Sext.Empiricus] |
| 1903 | If motion and rest are abolished, so is time [Sext.Empiricus] |
| 1904 | Time must be unlimited, but past and present can't be non-existent, and can't be now, so time does not exist [Sext.Empiricus] |
| 22749 | Time doesn't end with the Universe, because tensed statements about destruction remain true [Sext.Empiricus] |
| 22750 | Time is divisible, into past, present and future [Sext.Empiricus] |
| 1905 | How can time be divisible if we can't compare one length of time with another? [Sext.Empiricus] |
| 22742 | Socrates either dies when he exists (before his death) or when he doesn't (after his death) [Sext.Empiricus] |
| 22751 | If the present is just the limit of the past or the future, it can't exist because they don't exist [Sext.Empiricus] |
| 22730 | All men agree that God is blessed, imperishable, happy and good [Sext.Empiricus] |
| 1891 | How can we agree on the concept of God, unless we agree on his substance or form or place? [Sext.Empiricus] |
| 22739 | God must suffer to understand suffering [Sext.Empiricus] |
| 22738 | The Divine must lack the virtues of continence and fortitude, because they are not needed [Sext.Empiricus] |
| 22734 | God is defended by agreement, order, absurdity of denying God, and refutations [Sext.Empiricus] |
| 22736 | God's sensations imply change, and hence perishing, which is absurd, so there is no such God [Sext.Empiricus] |
| 22740 | God without virtue is absurd, but God's virtues will be better than God [Sext.Empiricus] |
| 1892 | The existence of God can't be self-evident or everyone would have agreed on it, so it needs demonstration [Sext.Empiricus] |
| 22735 | The original substance lacked motion or shape, and was given these by a cause [Sext.Empiricus] |
| 22732 | The perfections of God were extrapolations from mankind [Sext.Empiricus] |
| 22728 | Gods were invented as watchers of people's secret actions [Sext.Empiricus] |
| 22737 | An incorporeal God could do nothing, and a bodily god would perish, so there is no God [Sext.Empiricus] |
| 22731 | It is mad to think that what is useful to us, like lakes and rivers, are gods [Sext.Empiricus] |
| 1893 | If God foresaw evil he would presumably prevent it, and if he only foresees some things, why those things? [Sext.Empiricus] |