The business of every art is to bring something into existence, and the practice of an art involves the study of how to bring into existence something which is capable of having such an existence and has its efficient cause in the maker and not in itself.

The best friend is he that, when he wishes a person's good, wishes it for that person's own sake.

You will never do anything in this world without courage. It is the greatest quality of the mind next to honor.

The complete man must work, study and wrestle.

If they do not share equally enjoyments and toils, those who labor much and get little will necessarily complain of those who labor little and receive or consume much. But indeed there is always a difficulty in men living together and having all human relations in common, but especially in their having common property.

Change in all things is sweet.

Men create the gods after their own images.