To know what virtue is is not enough; we must endeavor to possess and to practice it, or in some other manner actually ourselves to become good.

And inasmuch as the great-souled man deserves most, he must be the best of men; for the better a man is the more he deserves, and he that is best deserves most. Therefore the truly great-souled man must be a good man. Indeed greatness in each of the virtues would seem to go with greatness of soul.

To the sober person adventurous conduct often seems insanity.

Happiness is a quality of the soul...not a function of one's material circumstances.

If we state the function of man to be a certain kind of life, and this to be an activity or actions of the soul implying a rational principle, and the function of a good man to be the good and noble performance of these, and if any action is well performed when it is performed in accordance with the appropriate excellence human good turns out to be activity of the soul in accordance with virtue, and if there are more than one virtue, in accordance with the best and most complete.

He who has overcome his fears will truly be free.

The worst thing about slavery is that the slaves eventually get to like it.