Combining Texts

Ideas for 'works', 'Human Knowledge: its scope and limits' and 'The Ethics'

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8 ideas

2. Reason / A. Nature of Reason / 2. Logos
For Aristotle logos is essentially the ability to talk rationally about questions of value [Roochnik on Aristotle]
     Full Idea: For Aristotle logos is the ability to speak rationally about, with the hope of attaining knowledge, questions of value.
     From: comment on Aristotle (works [c.330 BCE]) by David Roochnik - The Tragedy of Reason p.26
2. Reason / A. Nature of Reason / 3. Pure Reason
Reason only explains what is universal, so it is timeless, under a certain form of eternity [Spinoza]
     Full Idea: The foundations of reason are notions which explain those things which are common to all, and these things explain the essence of no individual thing, and must therefore be conceived without any relation to time, but under a certain form of eternity.
     From: Baruch de Spinoza (The Ethics [1675], II Pr 44)
     A reaction: You have to be totally inspired by this even if you totally disagree with it.
Reason perceives things under a certain form of eternity [Spinoza]
     Full Idea: It is in the nature of reason to perceive things under a certain form of eternity ('sub quadam aeternitatis specie').
     From: Baruch de Spinoza (The Ethics [1675], II Pr 44)
     A reaction: A wonderful, and justly famous, remark. If you don't feel the force (and poetry!) of this, you aren't a philosopher. It is not only appealing, but I don't see how it can fail to be true. Try producing good reasons which only have temporary force.
2. Reason / A. Nature of Reason / 4. Aims of Reason
In so far as men live according to reason, they will agree with one another [Spinoza]
     Full Idea: Men necessarily always agree with one another in so far as they live according to the guidance of reason.
     From: Baruch de Spinoza (The Ethics [1675], IV Pr 35)
     A reaction: I think this was my earliest motivation for getting interested in philosophy. Oddly, the Socratic tradition of philosophy is to challenge and criticise, but the aim is agreement. I sort of believe this idea, despite its wild idealism.
Aristotle is the supreme optimist about the ability of logos to explain nature [Roochnik on Aristotle]
     Full Idea: Aristotle is the great theoretician who articulates a vision of a world in which natural and stable structures can be rationally discovered. His is the most optimistic and richest view of the possibilities of logos
     From: comment on Aristotle (works [c.330 BCE]) by David Roochnik - The Tragedy of Reason p.95
2. Reason / B. Laws of Thought / 2. Sufficient Reason
There is necessarily for each existent thing a cause why it should exist [Spinoza]
     Full Idea: There is necessarily for each existent thing a cause why it should exist.
     From: Baruch de Spinoza (The Ethics [1675], I Pr 08 n2)
     A reaction: The obvious response is 'how do you know that?' It has to the sort of a priori commitment we expect from a rationalist philosopher. It seems to me quite an appealing candidate for an axiom of human understanding.
2. Reason / D. Definition / 4. Real Definition
Aristotelian definitions aim to give the essential properties of the thing defined [Aristotle, by Quine]
     Full Idea: A real definition, according to the Aristotelian tradition, gives the essence of the kind of thing defined. Man is defined as a rational animal, and thus rationality and animality are of the essence of each of us.
     From: report of Aristotle (works [c.330 BCE]) by Willard Quine - Vagaries of Definition p.51
     A reaction: Compare Idea 4385. Personally I prefer the Aristotelian approach, but we may have to say 'We cannot identify the essence of x, and so x cannot be defined'. Compare 'his mood was hard to define' with 'his mood was hostile'.
2. Reason / D. Definition / 5. Genus and Differentia
Aristotelian definition involves first stating the genus, then the differentia of the thing [Aristotle, by Urmson]
     Full Idea: For Aristotle, to give a definition one must first state the genus and then the differentia of the kind of thing to be defined.
     From: report of Aristotle (works [c.330 BCE]) by J.O. Urmson - Aristotle's Doctrine of the Mean p.157
     A reaction: Presumably a modern definition would just be a list of properties, but Aristotle seeks the substance. How does he define a genus? - by placing it in a further genus?