Now I know what the atom looks like.

I have to keep going, as there are always people on my track. I have to publish my present work as rapidly as possible in order to keep in the race. The best sprinters in this road of investigation are Becquerel and the Curies.

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

A good scientific theory should be explicable to a barmaid.

If, as I have reason to believe, I have disintegrated the nucleus of the atom, this is of greater significance than the war.

All science is either physics or stamp collecting.

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.