5 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 13157 | Choose the true hypothesis, which is the most intelligible one [Leibniz] |
| 13158 | The Copernican theory is right because it is the only one offering a good explanation [Leibniz] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |
| 23834 | Friendship is partly universal - the love of a person is like the ideal of loving everyone [Weil] |