5 ideas
291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
7667 | There are two sides to men - the pleasantly social, and the violent and creative [Diderot, by Berlin] |
293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |
20645 | Heat is a state of vibration, not a substance [Joule] |
20972 | Joule showed that energy converts to heat, and heat to energy [Joule, by Papineau] |