Don't let me catch anyone talking about the Universe in my department.

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

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.

Every good laboratory consists of first rate men working in great harmony to insure the progress of science; but down at the end of the hall is an unsociable, wrong-headed fellow working on unprofitable lines, and in his hands lies the hope of discovery.

Gentlemen, we have run out of money. It is time to start thinking.

The only possible conclusion the social sciences can draw is: some do, some don't.

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