如果一件事情对你很重要，即使成功的概率很小，你也应该去做。

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.

算法的美不在于它们的复杂性，而在于它们高效解决问题的能力。