6 ideas
1556 | By nature people are close to one another, but culture drives them apart [Hippias] |
13550 | To be always happy is to lack knowledge of one half of nature [Seneca] |
13549 | Nothing bad can happen to a good man [Seneca] |
13548 | The ocean changes in volume in proportion to the attraction of the moon [Seneca] |
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] |