There is enough energy in a single cubic meter of space to boil all the oceans in the world.

This is not yet a scientific age.

The test of all knowledge is experiment. Experiment is the sole judge of scientific truth.

I have a limited intelligence and I've used it in a particular direction.

What I cannot create, I do not understand.

There is a computer disease that anybody who works with computers knows about. It's a very serious disease and it interferes completely with the work. The trouble with computers is that you 'play' with them!

We have been led to imagine all sorts of things infinitely more marvelous than the imagining of poets and dreamers of the past. It shows that the imagination of nature is far, far greater than the imagination of man. For instance, how much more remarkable it is for us all to be stuck-half of us upside down-by a mysterious attraction, to a spinning ball that has been swinging in space for billions of years, than to be carried on the back of an elephant supported on a tortoise swimming in a bottomless sea.