4 ideas
291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
10245 | One geometry cannot be more true than another [Poincaré] |
9141 | Abstraction theories build mathematics out of second-order equivalence principles [Cook/Ebert] |
293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |