3 ideas
18189 | ZFC could contain a contradiction, and it can never prove its own consistency [MacLane] |
22668 | Apprehension is a complex intellect grasping the essence of a complex object [Holt,L] |
3061 | Anaxarchus said that he was not even sure that he knew nothing [Anaxarchus, by Diog. Laertius] |