7 ideas
| 21552 | Common speech is vague; its vocabulary and syntax must be modified, for precision [Russell] |
| 18261 | A simplification which is complete constitutes a definition [Kant] |
| 21551 | Empirical words need ostensive definition, which makes them egocentric [Russell] |
| 22275 | Logic gives us the necessary rules which show us how we ought to think [Kant] |
| 18260 | If we knew what we know, we would be astonished [Kant] |
| 21550 | Science reduces indexicals to a minimum, but they can never be eliminated from empirical matters [Russell] |
| 468 | Musical performance can reveal a range of virtues [Damon of Ath.] |