6 ideas
7071 | Life and rationality are pointless if we can only contemplate the freedom of our own ego [Jacobi] |
7072 | Jacobi was the first philosopher to talk of nihilism [Jacobi, by Critchley] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
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] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |