3 ideas
| 4871 | A thing is free if it acts only by the necessity of its own nature [Spinoza] |
| 9145 | We form the image of a cardinal number by a double abstraction, from the elements and from their order [Cantor] |
| 7453 | Galen's medicine followed the mean; each illness was balanced by opposite treatment [Galen, by Hacking] |