4 ideas
| 22363 | You have only begun to do real science when you can express it in numbers [Kelvin] |
| 5996 | Critolaus redefined Aristotle's moral aim as fulfilment instead of happiness [Critolaus, by White,SA] |
| 20239 | Unlike us, the early Greeks thought envy was a good thing, and hope a bad thing [Hesiod, by Nietzsche] |
| 20644 | Energy has progressed from a mere formula, to a principle pervading all nature [Kelvin] |