In the end, all we have are the stories we tell.

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.

任何一个时代的统治思想始终都不过是统治阶级的思想。

质量不是一种行为，而是一种习惯。

The most profound insights in mathematics often come from unexpected analogies.

「人生就只活这么一次。」「错，我们一生只死一次，剩余的每天都在生活。」