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

The most vitally characteristic fact about mathematics is, in my opinion, its quite peculiar relationship to the natural sciences, or more generally, to any science which interprets experience on a higher than purely descriptive level.

Science, as well as technology, will in the near and in the farther future increasingly turn from problems of intensity, substance, and energy, to problems of structure, organization, information, and control.

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

I am thinking about something much more important than bombs. I am thinking about computers.

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

Truth is much too complicated to allow anything but approximations.