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.
在野外，没有第二次机会。你必须第一次就做对。
科学不仅是理性的学科，也是浪漫和激情的学科。