We haven't got the money, so we've got to think.
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 clever fellow.' (1911)
A good scientific theory should be explicable to a barmaid.
If your result needs a statistician then you should design a better experiment.
Don't let me catch anyone talking about the Universe in my department.
The only possible conclusion the social sciences can draw is: some do, some don't.