It is better to suffer an injustice than to commit one

I know nothing but the certainty of my own ignorance.

Since all of us desire to be happy, and since we evidently become so on account of our use—that is our good use—of other things, and since knowledge is what provides this goodness of use and also good fortune, every man must, as seems plausible, prepare himself by every means for this: to be as wise as possible. Right?

No man undertakes a trade he has not learned, even the meanest; yet everyone thinks himself sufficiently qualified for the hardest of all trades, that of government.

The unexamined life is not worth living.

I know you won't believe me, but the highest form of Human Excellence is to question oneself and others.

Knowing thyself is the height of wisdom.