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.
你们必须掌握许多知识，让它们在你们的头脑里形成一个思维框架，在随后的日子里能自动地运用它们。
"In the silence between words, the truth often resides."
The best research is driven by both curiosity and necessity.
如果你不持续创作，你就会消失。
从来没有人有过这样的朋友，如此深情，如此忠诚，如此娴熟。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法：它是关于理解的。