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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.

我們從地下開采的石頭承載著4億年的歷史，我們只是暫時的保管者。

Hardware is the skeleton of innovation, software is its nervous system, but human need is its beating heart.

信仰是希望的燈塔。