Violent pleasures which reach the soul through the body are generally of this sort-they are reliefs of pain.

Nothing is more unworthy of a wise man, or ought to trouble him more, than to have allowed more time for trifling, and useless things, than they deserve.

Putting the shoe on the wrong foot.

[M]ere knowledge of the truth will not give you the art of persuasion.

He who advises a sick man, whose manner of life is prejudicial to health, is clearly bound first of all to change his patient's manner of life.

Is what is moral commanded by God because it is moral, or is it moral because it is commanded by God?

It is better to be wise, and not to seem so, than to seem wise, and not be so; yet men, for the most part, desire the contrary.