To be sure, it is not the fruits of scientific research that elevate a man and enrich his nature, but the urge to understand, the intellectual work, creative or receptive.

A theory is the more impressive the greater the simplicity of its premises is, the more different kinds of things it relates, and the more extended its area of applicability.

Earnestly I must exert myself in order to return as much as I have received.

I have always disliked the fierce competitive spirit embodied in that highly intellectual game.

A thought that sometimes makes me hazy: Am I - or are the others crazy?

Why is it I always get my best ideas while shaving?

When we are working at something, we come down from our high logical horse and sniff around with our nose to the ground. Then we obliterate our traces in order to become more God-like.