4 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 15380 | Barcan:nothing comes into existence; Converse:nothing goes out; Both:domain is unchanging [Vervloesem] |
| 17622 | We come to believe mathematical propositions via their grounding in the structure [Burge] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |