It is essential for men of science to take an interest in the administration of their own affairs or else the professional civil servant will step in - and then the Lord help you.

Gentlemen, now you will see that now you see nothing. And why you see nothing you will see presently.

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

The greatest contributor to the feeling of tension and fear of war arose from the power of the bombing aeroplane. If all nations would consent to abolish air bombardment . . . that would mean the greatest possible release from fear.

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

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.

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.