5 ideas
15990 | Every individual thing which exists has an essence, which is its internal constitution [Locke] |
18925 | If talking donkeys are possible, something exists which could be a talking donkey [Williamson, by Cameron] |
15994 | If it is knowledge, it is certain; if it isn't certain, it isn't knowledge [Locke] |
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] |