数学中最重要的是提出正确的问题。
The most important thing in mathematics is to ask the right questions.
In a way, if you like, at one end of the spectrum of sympathy, you've got the tabloid newspaper. At the other end of the spectrum, you've got tragedy and tragic art. And I suppose I'm arguing that we should learn a little bit about what's happening in tragic art. It would be insane to call Hamlet a loser. He is not a loser, though he has lost. And I think that is the message of tragedy to us, and why it's so very, very important, I think.
英国女王伊丽莎白二世来华访问时想见他,他说
Seek the best tranquil condition for the soul.
行为主义者放在自己面前的规则或衡量标准总是:我能否用"刺激和反应"来描述我所看到的这一行为?