4 ideas
17783 | A number is not a multitude, but a unified ratio between quantities [Newton] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
12709 | Motion is not absolute, but consists in relation [Leibniz] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |