| 294 | People say that friendship exists only between good men [Plato] |
| 156 | Bad people are never really friends with one another [Plato] |
| 3027 | Cyrenaics say wise men are self-sufficient, needing no friends [Aristippus young, by Diog. Laertius] |
| 2686 | Aristotle does not confine supreme friendship to moral heroes [Cooper,JM on Aristotle] |
| 2687 | For Aristotle in the best friendships the binding force is some excellence of character [Cooper,JM on Aristotle] |
| 85 | Bad men can have friendships of utility or pleasure, but only good men can be true friends [Aristotle] |
| 23919 | Friendship cannot be immediate; it takes time, and needs testing [Aristotle] |
| 23920 | Decent people can be friends with base people [Aristotle] |
| 2808 | Master and slave can have friendship through common interests [Aristotle] |
| 12275 | We value friendship just for its own sake [Aristotle] |
| 1843 | Friendship is by far the most important ingredient of a complete and happy life [Epicurus] |
| 511 | It is better to have one intelligent friend than many unintelligent [Democritus (attr)] |
| 7895 | Don't befriend fools; either find superior friends, or travel alone [Anon (Dham)] |
| 7916 | True friendship is even rarer than true love [Rochefoucauld] |
| 21093 | Friendship without community spirit misses out on the main part of virtue [Hume] |
| 14841 | Many people are better at having good friends than being a good friend [Nietzsche] |
| 14843 | Women can be friends with men, but only some physical antipathy will maintain it [Nietzsche] |
| 18295 | If you want friends, you must be a fighter [Nietzsche] |
| 23834 | Friendship is partly universal - the love of a person is like the ideal of loving everyone [Weil] |
| 7094 | Friends express friendship even when no utility is involved [Statman] |
| 2685 | The Greek 'philia' covers all good and fruitful relationships [Cooper,JM] |