5 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 10855 | Actual infinities are not allowed in mathematics - only limits which may increase without bound [Gauss] |
| 22518 | The actual must be possible, because it occurred [Aristotle] |
| 16566 | Poetry is more philosophic than history, as it concerns universals, not particulars [Aristotle] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |