Full Idea
God can make unnumerable things whose cause escapes me, and for this reason alone the entire class of causes which people customarily derive from a thing's "end", I judge to be utterly useless in physics.
Gist of Idea
Many causes are quite baffling, so it is absurd to deduce causes from final purposes
Source
René Descartes (Meditations [1641], §4.55)
Book Reference
Descartes,René: 'Discourse on Method/The Meditations', ed/tr. Sutcliffe,F.E. [Penguin 1968], p.135
A Reaction
anti-Aristotle