"When we were at the airport waiting for the plane to Chicago, I noticed that Feynman didn't have an overcoat. I said to him, 'Dick, where's your overcoat?' He said, 'I'm not bringing one.' And I said, 'Dick, it's February. We're going to Chicago and you're not taking an overcoat?' This is supposed to be the smartest man in the world."

-- David Goodstein, "The Uncreative Scientist: Feynman's Other Lost Lecture," Caltech News, Volume 31 No. 4., 1997.