Never believe on faith, see for yourself! What you yourself don't learn you don't know.
We often do not know ourselves the grounds On which we act, though plain to others.
What rapture, oh, it is to know A good thing when you see it And having seen a good thing, oh, What rapture 'tis to flee it.
One must live well to know what living is.
I don't know what a man is. Only that every man has his price.