We come now to the question: what is a priori certain or necessary, respectively in geometry (doctrine of space) or its foundations? Formerly we thought everything; nowadays we think nothing. Already the distance-concept is logically arbitrary; there need be no things that correspond to it, even approximately.

The Constitution only guarantees the American people the right to pursue happiness. You have to catch it yourself. A table, a chair, a bowl of fruit and a violin; what else does a man need to be happy?

One scientific epoch ended and another began with James Clerk Maxwell.

You can move through life seeing nothing as a miracle, or seeing everything as a miracle.

Nothing causes more consternation in a group of hypocrits than one honest man.

I never said half the crap people said I did.

The bitter and the sweet come from the outside, the hard from within, from one's own efforts.