display all the ideas for this combination of texts
4 ideas
13167 | We need the metaphysical notion of force to explain mechanics, and not just extended mass [Leibniz] |
16922 | Space must have three dimensions, because only three lines can meet at right angles [Kant] |
16921 | If all empirical sensation of bodies is removed, space and time are still left [Kant] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |