Quotes by John von Neumann

You insist that there is something a machine cannot do. If you tell me precisely what it is a machine cannot do, then I can always make a machine which will do just that.

Anyone who considers arithmetical methods of producing random numbers is, of course, in a state of sin.

There's no sense in being precise when you don't even know what you're talking about.

In mathematics you don't understand things. You just get used to them.

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