Full Idea
What sorts of contrarities, and how many of them, are to be accounted 'originative sources' of body?
Gist of Idea
Which of the contrary features of a body are basic to it?
Source
Aristotle (Coming-to-be and Passing-away (Gen/Corr) [c.335 BCE], 329b04)
Book Reference
Aristotle: 'The Basic Works of Aristotle', ed/tr. McKeon,Richard [Modern Library Classics 2001], p.509
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.