20 ideas
| 1642 | We must fight fiercely for knowledge, understanding and intelligence [Plato] |
| 1645 | The desire to split everything into its parts is unpleasant and unphilosophical [Plato] |
| 1644 | Dialectic should only be taught to those who already philosophise well [Plato] |
| 287 | Good analysis involves dividing things into appropriate forms without confusion [Plato] |
| 20478 | In discussion a person's opinions are shown to be in conflict, leading to calm self-criticism [Plato] |
| 11278 | What does 'that which is not' refer to? [Plato] |
| 1643 | If statements about non-existence are logically puzzling, so are statements about existence [Plato] |
| 7022 | To be is to have a capacity, to act on other things, or to receive actions [Plato] |
| 1641 | Some alarming thinkers think that only things which you can touch exist [Plato] |
| 10784 | Whenever there's speech it has to be about something [Plato] |
| 16122 | Good thinkers spot forms spread through things, or included within some larger form [Plato] |
| 10422 | The not-beautiful is part of the beautiful, though opposed to it, and is just as real [Plato] |
| 15855 | If we see everything as separate, we can then give no account of it [Plato] |
| 16597 | Quantity is the capacity to be divided [Digby] |
| 1637 | A soul without understanding is ugly [Plato] |
| 1636 | Wickedness is an illness of the soul [Plato] |
| 13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
| 1638 | Didactic education is hard work and achieves little [Plato] |
| 16731 | Colours arise from the rarity, density and mixture of matter [Digby] |
| 20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |