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2 ideas
20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |
Full Idea: Posidonius defined time thus: it is an interval of motion, or the measure of speed and slowness. | |
From: report of Posidonius (fragments/reports [c.95 BCE]) by John Stobaeus - Anthology 1.08.42 | |
A reaction: Hm. Can we define motion or speed without alluding to time? Looks like we have to define them as a conjoined pair, which means we cannot fully understand either of them. |
148 | If the prime origin is destroyed, it will not come into being again out of anything [Plato] |
Full Idea: If the prime origin is destroyed, it will not come into being again out of anything. | |
From: Plato (Phaedrus [c.366 BCE], 245d) | |
A reaction: This is the essence of Aquinas's Third Way of proving God's existence. |