4 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 15282 | Facts should be deducible from the theory and initial conditions, and prefer the simpler theory [Osiander, by Harré/Madden] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |
| 20486 | Only liberty, equality and sympathy can stand up to anti-social people [Kropotkin] |