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8 ideas
23311 | Aristotle sees reason as much more specific than our more everyday concept of it [Aristotle, by Frede,M] |
Full Idea: It seems that Aristotle does not associate reason primarily with ordinary, everyday thought and reasoning, as we do, but with a much more specific function of reason. | |
From: report of Aristotle (Metaphysics [c.324 BCE], 980b) by Michael Frede - Aristotle's Rationalism p.163 | |
A reaction: Although Aristotle is naturalistic, he is also a bit of a dualist, and so is less keen than I am to connect human reason with sensible behaviour in animals. |
23310 | Animals live by sensations, and some have good memories, but they don't connect experiences [Aristotle] |
Full Idea: By nature animals are born with the faculty of sensation, and from sensation memory is produced in some of them, though not in others; therefore the former are more intelligent. …Animals live by appearances and memories, with little connected experience. | |
From: Aristotle (Metaphysics [c.324 BCE], 980a28-) | |
A reaction: I assume that larger animals make judgements, which have to rely on previous experiences, so I think he underestimates the cleverest animals. We now know about Caledonian Crows, which amaze us, and would have amazed Aristotle. |
11245 | Many memories make up a single experience [Aristotle] |
Full Idea: Many recollections of the same thing perform the function of a single experience. | |
From: Aristotle (Metaphysics [c.324 BCE], 0980b28) | |
A reaction: This beautifully simple remark seems to me to be extremely important if we are going to understand the nature of thought. Personally I think it endorses the 'database' view of how the mind works (as a set of labelled 'files'). See Fodor's 'LOT2'. |
20953 | Every concept depends on the counter-concepts of what it is not [Hegel, by Bowie] |
Full Idea: Hegel relies on the claim that every concept depends for its determinacy upon its relation to other concepts which it is not (so that even the concept of being depends, for example, upon the concept of nothing). | |
From: report of Georg W.F.Hegel (Science of Logic [1816]) by Andrew Bowie - Introduction to German Philosophy 4 'Questions' | |
A reaction: How does he know this? A question I keep asking about continental philosophers. The negation concepts must be entirely non-conscious. Which negation concepts are relevant to the concept 'tree'? |
10954 | It is unclear whether acute angles are prior to right angles, or fingers to men [Aristotle] |
Full Idea: Suppose parts are prior to the whole - then, since the acute angle is a part of the right angle, and a finger is part of an animal, this would mean the acute angle and the finger were prior, but received opinion says otherwise. | |
From: Aristotle (Metaphysics [c.324 BCE], 1034b24) |
9792 | Mathematicians study quantity and continuity, and remove the perceptible features of things [Aristotle] |
Full Idea: The mathematician conducts a study into things in abstraction (after the removal of all perceptible features, such as weight and hardness, leaving only quantity and continuity). | |
From: Aristotle (Metaphysics [c.324 BCE], 1061a26) | |
A reaction: Frege complained that there is nothing left if you remove the perceptible features, but clearly Aristotle is not an empiricist in this passage, and it is doubtful if even Mill can be totally empirical in his account. We have relations of ideas. |
9077 | Mathematicians suppose inseparable aspects to be separable, and study them in isolation [Aristotle] |
Full Idea: Study things as mathematicians do. Suppose what is not separable to be separable. A man qua man is an indivisible unity, so the arithmetician supposes a man to be an indivisible unity, and investigates the accidental features of man qua indivisible. | |
From: Aristotle (Metaphysics [c.324 BCE], 1078a19) | |
A reaction: This is the abstractionist view of mathematics. Qua indivisible, a man will have the same properties as a toothbrush. Aristotle clearly intends the method for scientists as well. It strikes me as common sense, but there is a lot of modern caution. |
9075 | If health happened to be white, the science of health would not study whiteness [Aristotle] |
Full Idea: If we have a science of the healthy, and the healthy happens to be white, the science of the healthy does not deal with the white. | |
From: Aristotle (Metaphysics [c.324 BCE], 1077b30) | |
A reaction: Given this point, we certainly cannot think of Aristotle as believing in simple abstractionism. The problem of the coextension of renates and cordates looms here (Idea 7317). 'Relevant' similarities require extensive cross-referencing. |