4 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 22519 | Philosophers are revealed by their fears [Billington] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |
| 2594 | A true cause must involve a necessary connection between cause and effect [Malebranche] |