Combining Texts

All the ideas for 'On Being (frags)', 'The Logical Basis of Metaphysics' and 'Protrepticus (frags)'

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2 ideas

1. Philosophy / D. Nature of Philosophy / 5. Aims of Philosophy / d. Philosophy as puzzles

17949	Inquiry is the cause of philosophy [Aristotle]
	Full Idea: Inquiry is the cause of philosophy.
	From: Aristotle (Protrepticus (frags) [c.334 BCE]), quoted by Alexander Nehamas - Eristic,Antilogic,Sophistic,Dialectic p.120
	A reaction: The earlier part of the quote says philosophical thinking is inescapable (even if philosophy is impossible). I suppose we would call it 'curiosity'.

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

18801	Classical negation is circular, if it relies on knowing negation-conditions from truth-conditions [Dummett]
	Full Idea: Explanations of classical negation assume that knowing what it is for the truth-condition of some statement to obtain, independently of recognising it to obtain, we thereby know what it is for it NOT to obtain; but this presupposes classical negation.
	From: Michael Dummett (The Logical Basis of Metaphysics [1991], p.299), quoted by Ian Rumfitt - The Boundary Stones of Thought 1.1
	A reaction: [compressed wording] This is Dummett explaining why he prefers intuitionistic logic, with its doubts about double negation.