4 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 16567 | Scientists know everything about nothing, philosophers nothing about everything [Sagan,D] |
| 12729 | The cause of a change is not the real influence, but whatever gives a reason for the change [Leibniz] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |