4 ideas
17503 | Theories can never represent accurately, because their components are abstract [Cartwright,N, by Portides] |
9145 | We form the image of a cardinal number by a double abstraction, from the elements and from their order [Cantor] |
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] |