Only the knowledge that comes from inside is the real Knowledge

It is never right to do wrong or to requite wrong with wrong, or when we suffer evil to defend ourselves by doing evil in return.

The reason why we have to acquire wealth is the body, because we are slaves in its service.

To find yourself, think for yourself.

The best seasoning for food is hunger; for drink, thirst.

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.

I know that I know nothing.