To fear death, my friends, is only to think ourselves wise without really being wise, for it is to think that we know what we do not know.

I am the wisest man alive, for I know one thing, and that is that I know nothing.

Attention to health is life greatest hindrance.

Nothing in human affairs is worth any great anxiety.

That man is wisest who, like Socrates, realizes that his wisdom is worthless

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.

Either we shall find what it is we are seeking or at least we shall free ourselves from the persuasion that we know what we do not know.