20 ideas
12268 | Contradiction is impossible [Antisthenes (I), by Aristotle] |
192 | Only one thing can be contrary to something [Plato] |
602 | Some fools think you cannot define anything, but only say what it is like [Antisthenes (I), by Aristotle] |
18256 | Quantity is inconceivable without the idea of addition [Frege] |
9831 | Geometry appeals to intuition as the source of its axioms [Frege] |
190 | If asked whether justice itself is just or unjust, you would have to say that it is just [Plato] |
20184 | The only real evil is loss of knowledge [Plato] |
20185 | The most important things in life are wisdom and knowledge [Plato] |
191 | Everything resembles everything else up to a point [Plato] |
203 | Courage is knowing what should or shouldn't be feared [Plato] |
202 | No one willingly and knowingly embraces evil [Plato] |
193 | Some things are good even though they are not beneficial to men [Plato] |
200 | People tend only to disapprove of pleasure if it leads to pain, or prevents future pleasure [Plato] |
197 | Some pleasures are not good, and some pains are not evil [Plato] |
1664 | I would rather go mad than experience pleasure [Antisthenes (I)] |
188 | Socrates did not believe that virtue could be taught [Plato] |
21385 | Antisthenes said virtue is teachable and permanent, is life's goal, and is like universal wealth [Antisthenes (I), by Long] |
204 | Socrates is contradicting himself in claiming virtue can't be taught, but that it is knowledge [Plato] |
189 | If we punish wrong-doers, it shows that we believe virtue can be taught [Plato] |
2631 | Antisthenes says there is only one god, which is nature [Antisthenes (I), by Cicero] |