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.

Scientists are explorers. Philosophers are tourists.

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

I think a power to do something is of value. Whether the result is a good thing or a bad thing depends on how it is used, but the power is a value.

There is no authority who decides what is a good idea.

I couldn't claim that I was smarter than sixty-five other guys--but the average of sixty-five other guys, certainly!

I am a successful lecturer in physics for popular audiences. The real entertainment gimmick is the excitement, drama and mystery of the subject matter. People love to learn something, they are 'entertained' enormously by being allowed to understand a little bit of something they never understood before. One must have faith in the subject and in people's interest in it.