Mathematics are well and good but Nature keeps dragging us around by the nose.

It stands to the everlasting credit of science that by acting on the human mind it has overcome man's insecurity before himself and before nature.

I am truly a "lone traveler" and have never belonged to my country, my home, my friends, or even my immediate family, with my whole heart.

We cannot resolve the problems of the world by unsing the same techniques that have created them.

Play is the highest from of research.

Strenuous intellectual work and the study of God's Nature are the angels that will lead me through all the troubles of this life with consolation, strength, and uncompromising rigor.

Put your hand on a hot stove for a minute and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute.