7 ideas
| 18261 | A simplification which is complete constitutes a definition [Kant] |
| 22275 | Logic gives us the necessary rules which show us how we ought to think [Kant] |
| 21559 | We need rules for deciding which norms are predicative (unless none of them are) [Russell] |
| 21558 | 'Predicative' norms are those which define a class [Russell] |
| 18260 | If we knew what we know, we would be astonished [Kant] |
| 13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
| 20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |