If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is.

Technological possibilities are irresistible to man. If man can go to the moon, he will. If he can control the climate, he will.

Life is a process which may be abstracted from other media.

All stable processes we shall predict. All unstable processes we shall control.

The calculus was the first achievement of modern mathematics and it is difficult to overestimate its importance. I think it defines more unequivocally than anything else the inception of modern mathematics; and the system of mathematical analysis, which is its logical development, still constitutes the greatest technical advance in exact thinking.

It is just as foolish to complain that people are selfish and treacherous as it is to complain that the magnetic field does not increase unless the electric field has a curl. Both are laws of nature.

There is no point in being precise if you do not even know what you are talking about.