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.

.. for desire is like a wild beast, and anger perverts rulers and the very best of men. Hence law is intelligence without appetition.

All teaching and all intellectual learning come about from already existing knowledge.

Man by Nature desires to know.

Comedy has had no history, because it was not at first treated seriously.

We do not know a truth without knowing its cause.

Those who have been eminent in philosophy, politics, poetry, and the arts have all had tendencies toward melancholia.