I am a fool, but I know I'm a fool and that makes me smarter than you.

A free soul ought not to pursue any study slavishly, for nothing that is learned under compulsion stays with the mind.

Better to do a little well, then a great deal badly.

In my investigation in the service of the god I found that those who had the highest reputation were nearly the most deficient, while those who were thought to be inferior were more knowledgeable.

I must first know myself, as the Delphian inscription says; to be curious about that which is not my concern, while I am still in ignorance of my own self, would be ridiculous. And therefore I bid farewell to all this; the common opinion is enough for me. For, as I was saying, I want to know not about this, but about myself: am I a monster more complicated and swollen with passion than the serpent Typho, or a creature of a gentler and simpler sort, to whom Nature has given a diviner and lowlier destiny?

No one does wrong voluntarily.

All men's souls are immortal, but the souls of the righteous are immortal and divine.