23 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] |
12268 | Contradiction is impossible [Antisthenes (I), by Aristotle] |
287 | Good analysis involves dividing things into appropriate forms without confusion [Plato] |
1644 | Dialectic should only be taught to those who already philosophise well [Plato] |
20478 | In discussion a person's opinions are shown to be in conflict, leading to calm self-criticism [Plato] |
602 | Some fools think you cannot define anything, but only say what it is like [Antisthenes (I), by Aristotle] |
19043 | Bivalence applies not just to sentences, but that general terms are true or false of each object [Quine] |
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] |
19042 | Terms learned by ostension tend to be vague, because that must be quick and unrefined [Quine] |
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] |
1637 | A soul without understanding is ugly [Plato] |
1664 | I would rather go mad than experience pleasure [Antisthenes (I)] |
1636 | Wickedness is an illness of the soul [Plato] |
21385 | Antisthenes said virtue is teachable and permanent, is life's goal, and is like universal wealth [Antisthenes (I), by Long] |
1638 | Didactic education is hard work and achieves little [Plato] |
2631 | Antisthenes says there is only one god, which is nature [Antisthenes (I), by Cicero] |