The physician heals, Nature makes well.

The good lawgiver should inquire how states and races of men and communities may participate in a good life, and in the happiness which is attainable by them.

Knowing what is right does not make a sagacious man.

Actions determine what kind of characteristics are developed.

The attainment of truth is then the function of both the intellectual parts of the soul. Therefore their respective virtues are those dispositions which will best qualify them to attain truth.

All that one gains by falsehood is, not to be believed when he speaks the truth.

Not every action or emotion however admits of the observance of a due mean. Indeed the very names of some directly imply evil, for instance malice, shamelessness, envy, and, of actions, adultery, theft, murder. All these and similar actions and feelings are blamed as being bad in themselves; it is not the excess or deficiency of them that we blame. It is impossible therefore ever to go right in regard to them - one must always be wrong.