6 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 17809 | Gödel showed that the syntactic approach to the infinite is of limited value [Kreisel] |
| 17810 | The study of mathematical foundations needs new non-mathematical concepts [Kreisel] |
| 22352 | Out of more than a hundred planets, Earth is the only one with the idea of free will [Vonnegut] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |
| 17811 | The natural conception of points ducks the problem of naming or constructing each point [Kreisel] |