It is the active exercise of our faculties in conformity with virtue that causes happiness, and the opposite activities its opposite.

The best political community is formed by citizens of the middle class.

Nowadays, for the sake of the advantage which is to be gained from the public revenues and from office, men want to be always in office.

Excellence is an art won by training and habituation. We do not act rightly because we have virtue or excellence, but we rather have those because we have acted rightly. We are what we repeatedly do. Excellence, then, is not an act but a habit.

Between friends there is no need of justice.

It is the activity of the intellect that constitutes complete human happiness - provided it be granted a complete span of life, for nothing that belongs to happiness can be incomplete.

The soul never thinks without a picture.