Aristotle

Quality is not an act, it is a habit.

Happiness depends upon ourselves .

Happiness is a state of activity.

. . . happiness is the highest good, being a realization and perfect practice of virtue, which some can attain, while others have little or none of it. . . .

If happiness is activity in accordance with excellence, it is reasonable that it should be in accordance with the highest excellence.

He who has never learned to obey cannot be a good commander.

I count him braver who overcomes his desires than him who conquers his enemies; for the hardest victory is over self.

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

All men by nature desire to know.

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

What it lies in our power to do, it lies in our power not do.

Dignity does not consist in possessing honors, but in deserving them.

To enjoy the things we ought and to hate the things we ought has the greatest bearing on excellence of character.