John Edensor Littlewood on Bertrand Russell

“I felt the theory [of relativity] was about the greatest intellectual advance and illumination that had ever happened. I explained it to Russell, who at that time knew no physics. He was similarly staggered. Suddenly he burst out (to Dora's consternation): ''''To think I have spent my life on absolute muck.''''”

“All Bertrand Russell said about [his meeting with Einstein] (apart from how wonderful Einstein looked, and his wonderful eyes) was that Einstein told him a dirty story. I said that Einstein was well known for consummate tact in adapting himself to his company.”