Friends hold a mirror up to each other; through that mirror they can see each other in ways that would not otherwise be accessible to them, and it is this mirroring that helps them improve themselves as persons.

-Aristotle
Aristotle

We are what we repeatedly do. Excellence, then, is not an act, but a habit. Arist

Aristotle
Purpose ... is held to be most closely connected with virtue, and to be a better token of our character than are even our acts.
Aristotle

Definition of tragedy: A hero destroyed by the excess of his virtues

Aristotle
Yet the true friend of the people should see that they be not too poor, for extreme povery lowers the character of the democracy; measures therefore should be taken which will give them lasting prosperity; and as this is equally the interest of all classes, the proceeds of the public revenues should be accumulated and distributed among its poor, if possible, in such quantities as may enable them to purchase a little farm, or, at any rate, make a beginning in trade or husbandry.
Aristotle

Metaphor is halfway between the unintelligible and the commonplace.

Aristotle
But it is not at all certain that this superiority of the many over the sound few is possible in the case of every people and every large number. There are some whom it would be impossible: otherwise the theory would apply to wild animals- and yet some men are hardly any better than wild animals.
Aristotle

Obstinate people can be divided into the opinionated, the ignorant, and the boorish.

Aristotle
Melancholy men, of all others, are the most witty.
Aristotle

Distance does not break off the friendship absolutely, but only the activity of it.

Aristotle
The life of theoretical philosophy is the best and happiest a man can lead. Few men are capable of it and then only intermittently. For the rest there is a second-best way of life, that of moral virtue and practical wisdom.