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Ideas for '67: Platonic Questions', 'Causal Connections' and 'Coming-to-be and Passing-away (Gen/Corr)'

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12. Knowledge Sources / B. Perception / 2. Qualities in Perception / b. Primary/secondary

16717	Which of the contrary features of a body are basic to it? [Aristotle]
	Full Idea: What sorts of contrarities, and how many of them, are to be accounted 'originative sources' of body?
	From: Aristotle (Coming-to-be and Passing-away (Gen/Corr) [c.335 BCE], 329b04)
	A reaction: Pasnau says these pages of Aristotle are the source of the doctrine of primary and secondary qualities. Essentially, hot, cold, wet and dry are his four primary qualities.