4 ideas
291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
18189 | ZFC could contain a contradiction, and it can never prove its own consistency [MacLane] |
19590 | Empiricists are passive thinkers, given their philosophy by the external world and fate [Novalis] |
293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |