5 ideas
13416 | Mathematics must be based on axioms, which are true because they are axioms, not vice versa [Tait, by Parsons,C] |
16597 | Quantity is the capacity to be divided [Digby] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
16731 | Colours arise from the rarity, density and mixture of matter [Digby] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |