Just as you ought not to attempt to cure eyes without head or head without body, so you should not treat body without soul.

Improve yourself by other men's writings thus attaining effortlessly what they acquired through great difficulty.

Well I am certainly wiser than this man. It is only too likely that neither of us has any knowledge to boast of; but he thinks that he knows something which he does not know, whereas I am quite conscious of my ignorance. At any rate it seems that I am wiser than he is to this small extent, that I do not think that I know what I do not know.

All thinking begins with wondering

Men of Athens, I honor and love you; but I shall obey God rather than you, and while I have life and strength I shall never cease from the practice and teaching of philosophy.

There is no learning without remembering.

Be true to thine own self.