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

Now I know what the atom looks like..

An alleged scientific discovery has no merit unless it can be explained to a barmaid..

You know, I am sorry for the poor fellows that haven't got labs to work in..

The more physics you have the less engineering you need..

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

We haven't got the money, so we've got to think..

It was almost as incredible as if you fired a 15-inch shell at a piece of tissue paper and it came back and hit you..

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

If your experiment needs statistics, you ought to have done a better experiment..

I am a great believer in the simplicity of things and as you probably know I am inclined to hang on to broad & simple ideas like grim death until evi….

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 th….

That which is not measurable is not science. That which is not physics is stamp collecting..

When we have found how the nucleus of atoms is built up we shall have found the greatest secret of all — except life. We shall have found the basis o….

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

A theory that you can't explain to a bartender is probably no damn good..

All science is either physics or stamp collecting..

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 un….

We are rather like children, who must take a watch to pieces to see how it works..

I've just finished reading some of my early papers, and you know, when I'd finished I said to myself, 'Rutherford, my boy, you used to be a damned cl….

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