You’ve got to have models in your head. And you’ve got to array your experience—both vicarious and direct—on this latticework of models. You may have noticed students who just try to remember and pound back what is remembered. Well, they fail in school and in life. You’ve got to hang experience on a latticework of models in your mind.

The beauty of theoretical computer science lies in its ability to abstract and solve problems that seem insurmountable.

国家的命运是由其人民决定的。

译文：一个人虽然没有身处艰难困境，但不能忘记还有艰难的时候。世上虽然有侥幸的事情存在，但不能心存侥幸的心理。赏析：人最大的悲哀就是总是对有些事情抱有幻想，都希望坏事不会发生在自己身上，可现实很无奈，越不想越就会发生。侥幸是发生祸患的根源，做任何事前，我们一定要防患于未然，做好最坏的打算。