Although it may be difficult in theory to know what is just and equal, the practical difficulty of inducing those to forbear who can, if they like, encroach, is far greater, for the weaker are always asking for equality and justice, but the stronger care for none of these things.

In the perfect state the good man is absolutely the same as the good citizen; whereas in other states the good citizen is only good relatively to his own form of government.

It is the repeated performance of just and temperate actions that produces virtue.

Let us first understand the facts and then we may seek the cause.

Conscientious and careful physicians allocate causes of disease to natural laws, while the ablest scientists go back to medicine for their first principles.

Consider pleasures as they depart, not as they come.

Also, that which is desirable in itself is more desirable than what is desirable per accidens.