4 ideas
291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
8728 | Intuitionist mathematics deduces by introspective construction, and rejects unknown truths [Brouwer] |
23283 | Necessity implies possibility, but in experience it matters which comes first [Williams,B] |
293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |