Full Idea
Antisthenes said that contradiction is impossible.
Gist of Idea
Contradiction is impossible
Source
report of Antisthenes (Ath) (fragments/reports [c.405 BCE]) by Aristotle - Topics 104b21
Book Reference
Aristotle: 'Posterior Analytics and Topica', ed/tr. Tredennick,H/Forster,ES [Harvard 1960], p.301
A Reaction
Aristotle is giving an example of a 'thesis'. It should be taken seriously if a philosopher proposes it, but dismissed as rubbish if anyone else proposes it! No context is given for the remark.