30 ideas
14519 | It is a great good to show reverence for a wise man [Epicurus] |
14518 | In the study of philosophy, pleasure and knowledge arrive simultaneously [Epicurus] |
1553 | No perceptible object is truly straight or curved [Protagoras] |
14524 | Bodies are combinations of shape, size, resistance and weight [Epicurus] |
1549 | Everything that exists consists in being perceived [Protagoras] |
1545 | Protagoras was the first to claim that there are two contradictory arguments about everything [Protagoras, by Diog. Laertius] |
1547 | Man is the measure of all things - of things that are, and of things that are not [Protagoras] |
3305 | There is no more purely metaphysical doctrine than Protagorean relativism [Benardete,JA on Protagoras] |
3317 | You can only state the problem of the relative warmth of an object by agreeing on the underlying object [Benardete,JA on Protagoras] |
3313 | If my hot wind is your cold wind, then wind is neither hot nor cold, and so not as cold as itself [Benardete,JA on Protagoras] |
247 | God is "the measure of all things", more than any man [Plato on Protagoras] |
606 | Protagoras absurdly thought that the knowing or perceiving man is 'the measure of all things' [Aristotle on Protagoras] |
612 | Relativists think if you poke your eye and see double, there must be two things [Aristotle on Protagoras] |
14521 | If everything is by necessity, then even denials of necessity are by necessity [Epicurus] |
6016 | Early sophists thought convention improved nature; later they said nature was diminished by it [Protagoras, by Miller,FD] |
14522 | What happens to me if I obtain all my desires, and what if I fail? [Epicurus] |
3563 | Pleasure and virtue entail one another [Epicurus] |
1580 | For Protagoras the only bad behaviour is that which interferes with social harmony [Protagoras, by Roochnik] |
3560 | Justice is merely a contract about not harming or being harmed [Epicurus] |
205 | Protagoras contradicts himself by saying virtue is teachable, but then that it is not knowledge [Plato on Protagoras] |
14517 | We value our own character, whatever it is, and we should respect the characters of others [Epicurus] |
14513 | Justice is a pledge of mutual protection [Epicurus] |
14515 | A law is not just if it is not useful in mutual associations [Epicurus] |
1659 | Protagoras seems to have made the huge move of separating punishment from revenge [Protagoras, by Vlastos] |
532 | Successful education must go deep into the soul [Protagoras] |
1552 | He spent public money on education, as it benefits the individual and the state [Protagoras, by Diodorus of Sicily] |
14520 | It is small-minded to find many good reasons for suicide [Epicurus] |
1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |
1551 | He said he didn't know whether there are gods - but this is the same as atheism [Diogenes of Oen. on Protagoras] |