5 ideas
13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |
16711 | Heretics should be eradicated like wolves [Aquinas] |