5 ideas
22101 | Philosophy aims to know the truth about the way things are [Aquinas] |
19404 | Necessities rest on contradiction, and contingencies on sufficient reason [Leibniz] |
13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
19403 | Each of the infinite possible worlds has its own laws, and the individuals contain those laws [Leibniz] |
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |