6 ideas
18521 | The criterion of existence is the possibility of action [Santayana] |
16634 | I can't be unaware of anything which is in me [Descartes] |
3635 | Essence must be known before we discuss existence [Descartes] |
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] |
3634 | We can't prove a first cause from our inability to grasp infinity [Descartes] |