The energy produced by the breaking down of the atom is a very poor kind of thing. Anyone who expects a source of power from the transformation of these atoms is talking moonshine.

I congratulate you both on a fine piece of work which I am sure will ultimately prove of importance. I am personally very much interested in your results... In the past I have tried a number of experiments... but without any success.

Never say, "I tried it once and it did not work."

All scientific men will be delighted to extend their warmest congratulations to Tesla and to express their appreciation of his great contributions to science.

I must confess it was very unexpected and I am very startled at my metamorphosis into a chemist.

All of physics is either impossible or trivial. It is impossible until you understand it, and then it becomes trivial.

The more physics you have the less engineering you need.