Love is the cause of unity in all things.

The shape of the heaven is of necessity spherical; for that is the shape most appropriate to its substance and also by nature primary.

Misfortune shows those who are not really friends.

The beginning of reform is not so much to equalize property as to train the noble sort of natures not to desire more, and to prevent the lower from getting more.

Courage is the first virtue that makes all other virtues possible.

Emotions of any kind can be evoked by melody and rhythm; therefore music has the power to form character.

The end of labor is to gain leisure.