Radioactivity is shown to be accompanied by chemical changes in which new types of matter are being continually produced. .... The conclusion is drawn that these chemical changes must be sub-atomic in character.

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.

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

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.

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

The more physics you have the less engineering you need.

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