All I really know is the extent of my own ignorance
Maximize the power of the beliefs that strengthen you and neutralize those that weaken you.
Violent pleasures which reach the soul through the body are generally of this sort-they are reliefs of pain.
Fly from the company of the wicked--fly and turn not back.
Moderation, which consists in indifference about little things, and in a prudent and well-proportioned zeal about things of importance, can proceed from nothing but true knowledge, which has its foundation in self-acquaintance.
The wisdom of men is worth little or nothing.