3 ideas
| 7536 | If you hope to improve the world, all you can do is improve yourself [Wittgenstein] |
| 14799 | Metaphysics rests on observations, but ones so common we hardly notice them [Peirce] |
| 6004 | The cardinal virtues are theoretical (based on knowledge), and others are 'non-theoretical' [Hecato, by Dorandi] |