| 5149 | The two main parts of the soul give rise to two groups of virtues - intellectual, and moral [Aristotle] |
| 5156 | How can good actions breed virtues, if you need to be virtuous to perform good actions? [Aristotle] |
| 5157 | If a thing has excellence, this makes the thing good, and means it functions well [Aristotle] |
| 5872 | Excellence is the best state of anything (like a cloak) which has an employment or function [Aristotle] |
| 625 | Is excellence separate from things, or part of them, or both? [Aristotle] |
| 14060 | Prudence is the greatest good, and more valuable than philosophy, because it produces virtue [Epicurus] |
| 20855 | Chrysippus says virtue can be lost (though Cleanthes says it is too secure for that) [Chrysippus, by Diog. Laertius] |
| 5970 | Chrysippus says nothing is blameworthy, as everything conforms with the best nature [Chrysippus, by Plutarch] |
| 23181 | All acts of virtue relate to justice, which is directed towards the common good [Aquinas] |
| 21871 | The more we strive for our own advantage, the more virtuous we are [Spinoza] |
| 17210 | All virtue is founded on self-preservation [Spinoza] |
| 17214 | To act virtuously is to act rationally [Spinoza] |
| 12515 | Actions are virtuous if they are judged praiseworthy [Locke] |
| 6232 | Every creature has a right and a wrong state which guide its actions, so there must be a natural end [Shaftesbury] |
| 23672 | To be virtuous, we must care about duty [Reid] |
| 8097 | Virtue is hard if we are scorned; we need support [Joubert] |
| 14818 | First morality is force, then custom, then acceptance, then instinct, then a pleasure - and finally 'virtue' [Nietzsche] |
| 21742 | Originally virtue was obedience, to gods, government, or custom [Russell] |
| 22478 | The essential thing is the 'needs' of plants and animals, and their operative parts [Foot] |
| 22398 | Virtues are corrective, to resist temptation or strengthen motivation [Foot] |
| 5076 | To Greeks it seemed obvious that the virtue of anything is the perfection of its function [Taylor,R] |
| 20195 | Eudaimonia first; virtue is a trait which promotes it; right acts are what virtues produce [Hursthouse, by Zagzebski] |