我认为人们相信天堂是因为他们不喜欢死亡的想法，因为他们想继续活着，也不喜欢别人搬进他们的房子、把他们的东西扔进垃圾桶的想法。

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.

好设计的关键在于理解力。

There are some things so serious you have to laugh at them.

In seeking the unattainable, simplicity only gets in the way.

The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.