All I know is that I do not know anything

...one thing I am ready to fight for as long as I can, in word and act: that is, that we shall be better, braver and more active men if we believe it right to look for what we don't know than if we believe there is no point in looking because what we don't know we can never discover.

To fear death is nothing other than to think oneself wise when one is not. For it is to think one knows what one does not know. No one knows whether death may not even turn out to be the greatest blessings of human beings. And yet people fear it as if they knew for certain it is the greatest evil.

An honest man is always a child.

The noblest worship is to make yourself as good and as just as you can.

Do you suppose that I should have lived as long as I have if I had moved in the sphere of public life, and conducting myself in that sphere like an honorable man, had always upheld the cause of right, and conscientiously set this end above all other things? Not by a very long way, gentlemen; neither would any other man.

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