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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.

出自《曉窗》。少年的時候聽見雞鳴的叫聲正在熟睡，老年的時候聽見雞鳴就起床了。千古以來萬代的人們，都消磨在幾聲雞鳴里了。

Success in the aggregates industry is not just about moving rocks; it's about moving the economy forward.

The only way to avoid mistakes is to have no new ideas.

I believe in the power of dreams and the importance of hard work.

Science is about pushing boundaries, both in knowledge and technology.