Any one who considers arithmetical methods of producing random digits is, of course, in a state of sin.

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

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.

Problems are often stated in vague terms... because it is quite uncertain what the problems really are.

The total subject of mathematics is clearly too broad for any of us. I do not think that any mathematician since Gauss has covered it uniformly and fully; even Hilbert did not and all of us are of considerably lesser width quite apart from the question of depth than Hilbert.

With four parameters I can fit an elephant, and with five I can make him wiggle his trunk.