Full Idea
We should not see mathematical exactitude in all things, but only for things that do not have matter.
Gist of Idea
Mathematical precision is only possible in immaterial things
Source
Aristotle (Metaphysics [c.324 BCE], 0995a14)
Book Reference
Aristotle: 'Metaphysics', ed/tr. Lawson-Tancred,Hugh [Penguin 1998], p.48