20 ideas
17651 | Without words or other symbols, we have no world [Goodman] |
Full Idea: We can have words without a world but no world without words or other symbols. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.3) | |
A reaction: Goodman seems to have a particularly extreme version of the commitment to philosophy as linguistic. Non-human animals have no world, it seems. |
19463 | Induction assumes some uniformity in nature, or that in some respects the future is like the past [Ayer] |
Full Idea: In all inductive reasoning we make the assumption that there is a measure of uniformity in nature; or, roughly speaking, that the future will, in the appropriate respects, resemble the past. | |
From: A.J. Ayer (The Problem of Knowledge [1956], 2.viii) | |
A reaction: I would say that nature is 'stable'. Nature changes, so a global assumption of total uniformity is daft. Do we need some global uniformity assumptions, if the induction involved is local? I would say yes. Are all inductions conditional on this? |
17652 | Truth is irrelevant if no statements are involved [Goodman] |
Full Idea: Truth pertains solely to what is said ...For nonverbal versions and even for verbal versions without statements, truth is irrelevant. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.5) | |
A reaction: Goodman is a philosopher of language (like Dummett), but I am a philosopher of thought (like Evans). The test, for me, is whether truth is applicable to the thought of non-human animals. I take it to be obvious that it is applicable. |
17656 | Being primitive or prior always depends on a constructional system [Goodman] |
Full Idea: Nothing is primitive or derivationally prior to anything apart from a constructional system. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.4c) | |
A reaction: Something may be primitive not just because we can't be bothered to analyse it any further, but because even God couldn't analyse it. Maybe. |
17661 | We don't recognise patterns - we invent them [Goodman] |
Full Idea: Recognising patterns is very much a matter of inventing or imposing them. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.7) | |
A reaction: I take this to be false. |
17659 | Reality is largely a matter of habit [Goodman] |
Full Idea: Reality in a world, like realism in a picture, is largely a matter of habit. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.6) | |
A reaction: I'm a robust realist, me, but I sort of see what he means. We become steeped in unspoken conventions about how we take our world to be, and filter out anything that conflicts with it. |
17657 | We build our world, and ignore anything that won't fit [Goodman] |
Full Idea: We dismiss as illusory or negligible what cannot be fitted into the architecture of the world we are building. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.4d) | |
A reaction: I'm trying to think of an example of this, but can't. Maybe poor people are invisible to the rich? |
17654 | A world can be full of variety or not, depending on how we sort it [Goodman] |
Full Idea: A world may be unmanageably heterogeneous or unbearably monotonous according to how events are sorted into kinds. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.4a) | |
A reaction: We might expect this from the man who invented 'grue', which allows you to classify things that change colour with things that don't. Could you describe a bird as 'might have been a fish', and classify it with fish? ('Projectible'?) |
17653 | Things can only be judged the 'same' by citing some respect of sameness [Goodman] |
Full Idea: Identification rests upon organization into entities and kinds. The response to the question 'Same or not the same?' must always be 'Same what?'. ...Identity or constancy in a world is identity with respect to what is within that world as organised. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.4a) | |
A reaction: And the gist of his book is that 'organised' is done by us, not by the world. He seems to be committed to the full Geachean relative identity, rather than the mere Wigginsian relative individuation. An unfashionable view! |
19459 | To say 'I am not thinking' must be false, but it might have been true, so it isn't self-contradictory [Ayer] |
Full Idea: To say 'I am not thinking' is self-stultifying since if it is said intelligently it must be false: but it is not self-contradictory. The proof that it is not self-contradictory is that it might have been false. | |
From: A.J. Ayer (The Problem of Knowledge [1956], 2.iii) | |
A reaction: If it doesn't imply a contradiction, then it is not a necessary truth, which is what it is normally taken to be. Is 'This is a sentence' necessarily true? It might not have been one, if the rules of English syntax changed recently. |
19460 | 'I know I exist' has no counterevidence, so it may be meaningless [Ayer] |
Full Idea: If there is no experience at all of finding out that one is not conscious, or that one does not exist, ..it is tempting to say that sentences like 'I exist', 'I am conscious', 'I know that I exist' do not express genuine propositions. | |
From: A.J. Ayer (The Problem of Knowledge [1956], 2.iii) | |
A reaction: This is, of course, an application of the somewhat discredited verification principle, but the fact that strictly speaking the principle has been sort of refuted does not mean that we should not take it seriously, and be influenced by it. |
19461 | Knowing I exist reveals nothing at all about my nature [Ayer] |
Full Idea: To know that one exists is not to know anything about oneself any more than knowing that 'this' exists is knowing anything about 'this'. | |
From: A.J. Ayer (The Problem of Knowledge [1956], 2.iii) | |
A reaction: Descartes proceeds to define himself as a 'thinking thing', inferring that thinking is his essence. Ayer casts nice doubt on that. |
17660 | Discovery is often just finding a fit, like a jigsaw puzzle [Goodman] |
Full Idea: Discovery often amounts, as when I place a piece in a jigsaw puzzle, not to arrival at a proposition for declaration or defense, but to finding a fit. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.7) | |
A reaction: I find Goodman's views here pretty alien, but I like this bit. Coherence really rocks. |
19464 | We only discard a hypothesis after one failure if it appears likely to keep on failing [Ayer] |
Full Idea: Why should a hypothesis which has failed the test be discarded unless this shows it to be unreliable; that is, having failed once it is likely to fail again? There is no contradiction in a hypothesis that was falsified being more likely to pass in future. | |
From: A.J. Ayer (The Problem of Knowledge [1956], 2.viii) | |
A reaction: People may become more likely to pass a test after they have failed at the first attempt. Birds which fail to fly at the first attempt usually achieve total mastery of it. There are different types of hypothesis here. |
17658 | Users of digital thermometers recognise no temperatures in the gaps [Goodman] |
Full Idea: To use a digital thermometer with readings in tenths of a degree is to recognise no temperature as lying between 90 and 90.1 degrees. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.4d) | |
A reaction: This appears to be nonsense, treating users of digital thermometers as if they were stupid. No one thinks temperatures go up and down in quantum leaps. We all know there is a gap between instrument and world. (Very American, I'm thinking!) |
17650 | We lack frames of reference to transform physics, biology and psychology into one another [Goodman] |
Full Idea: We have no neat frames of reference, no ready rules for transforming physics, biology and psychology into one another. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.2) |
19462 | Induction passes from particular facts to other particulars, or to general laws, non-deductively [Ayer] |
Full Idea: Inductive reasoning covers all cases in which we pass from a particular statement of fact, or set of them, to a factual conclusion which they do not formally entail. The inference may be to a general law, or by analogy to another particular instance. | |
From: A.J. Ayer (The Problem of Knowledge [1956], 2.viii) | |
A reaction: My preferred definition is 'learning from experience' - which I take to be the most rational behaviour you could possibly imagine. I don't think a definition should be couched in terms of 'objects' or 'particulars'. |
17655 | Grue and green won't be in the same world, as that would block induction entirely [Goodman] |
Full Idea: Grue cannot be a relevant kind for induction in the same world as green, for that would preclude some of the decisions, right or wrong, that constitute inductive inference. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.4b) | |
A reaction: This may make 'grue' less mad than I thought it was. I always assume we are slicing the world as 'green, blue and grue'. I still say 'green' is a basic predicate of experience, but 'grue' is amenable to analysis. |
7667 | There are two sides to men - the pleasantly social, and the violent and creative [Diderot, by Berlin] |
Full Idea: Diderot is among the first to preach that there are two men: the artificial man, who belongs in society and seeks to please, and the violent, bold, criminal instinct of a man who wishes to break out (and, if controlled, is responsible for works of genius. | |
From: report of Denis Diderot (works [1769], Ch.3) by Isaiah Berlin - The Roots of Romanticism | |
A reaction: This has an obvious ancestor in Plato's picture (esp. in 'Phaedrus') of the two conflicting sides to the psuché, which seem to be reason and emotion. In Diderot, though, the suppressed man has virtues, which Plato would deny. |
17649 | If the world is one it has many aspects, and if there are many worlds they will collect into one [Goodman] |
Full Idea: If there is but one world, it embraces a multiplicity of contrasting aspects; if there are many worlds, the collection of them all is one. One world may be taken as many, or many worlds taken as one; whether one or many depends on the way of taking. | |
From: Nelson Goodman (Ways of Worldmaking [1978], 1.2) | |
A reaction: He cites 'The Pluralistic Universe' by William James for this idea. The idea is that the distinction 'evaporates under analysis'. Parmenides seems to have thought that no features could be distinguished in the true One. |