5 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 13165 | Geometrical proofs do not show causes, as when we prove a triangle contains two right angles [Proclus] |
| 9569 | The origin of geometry started in sensation, then moved to calculation, and then to reason [Proclus] |
| 7903 | The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |