He who gives himself to a lover because he is a good man, and in the hope that he will be improved by his company, shows himself to be virtuous, even though the object of his affection turn out to be a villain, and to have no virtue; and if he is deceived he has committed a noble error. For he has proved that for his part he will do anything for anybody with a view to virtue and improvement, than which there can be nothing nobler.

Everything that deceives does so by casting a spell.

For though a man should be a complete unbeliever in the being of gods; if he also has a native uprightness of temper, such persons will detest evil in men; their repugnance to wrong disinclines them to commit wrongful acts; they shun the unrighteous and are drawn to the upright.

All the gold which is under or upon the earth is not enough to give in exchange for virtue.

Knowledge becomes evil if the aim be not virtuous.

The whole life of the philosopher is a preparation for death.

False words are not only evil in themselves, but they infect the soul with evil.