4 ideas
12750 | The question is whether force is self-sufficient in bodies, and essential, or dependent on something [Lenfant] |
9567 | Maths deals with quantities of physical significance, ignoring irrelevant features [Geroch] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |