My friends and I had taken dancing lessons, although none of us would ever admit it. In those depression days, a friend of my mother was trying to make a living by teaching dancing in the evening, in an upstairs dance studio. There was a back door to the place, and she arranged it so the young men could come up through the back way without being seen.

The female mind is capable of understanding analytic geometry... The difficulty may just be that we have never yet discovered a way to communicate with the female mind. If it is done in the right way, you may be able to get something out of it.

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

I'm going to play with physics, whenever I want to, without worrying about any importance whatsoever.

The inside of a computer is as dumb as hell but it goes like mad!

I am not interested in what today's mathematicians find interesting.

Scientific knowledge is an enabling power to do either good or bad — but it does not carry instructions on how to use it.