公司的文化由其领导者所体现的价值观定义。

The ultimate situations - death, chance, guilt, and the uncertainty of the world - confront man with the reality of his existence.

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

我已经履行了我的职责。我证明了庞加莱猜想，我在数学上没有什么可做的了。