个人行为并非为了最大化独立存在的效用函数。

"The only thing that one really knows about human nature is that it changes."

"The more you live your life, the less you fear death."

生活中没有什么事情会像你在思考它时认为的那么重要。

I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.

The Romans would never have found time to conquer the world if they had been obliged first to learn Latin.