The longer we dwell on our misfortunes, the greater is their power to harm us.

I know that I am intelligent, because I know that I know nothing.

I knew I belonged to the public and to the world, not because I was talented or even beautiful, but because I had never belonged to anything or anyone else.

Those who educate children well are more to be honored than they who produce them; for these only gave them life, those the art of living well.

Man is the only creature that refuses to be what he is.