来自《耶鲁大学开放课程：基础物理 第1集 第1集》

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  because that may not be a prerequisite
  因为那不是必须的
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  but certainly something you will learn and
  但是你们以后会学到
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  you may use on and off.
  有时候还能派上用场
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  But there are different ways of doing physics.
  学习物理有很多种方法
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  Mine is to demonstrate over and over
  我的方法就是 反复演算
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  how little mathematics you need to get the job done.
  用最少的数学来解决问题
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  There are others who like to show you how much mathematics
  还有些人喜欢跟你炫耀数学用的多
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  you could somehow insinuate into the process.
  尽管过程显得非常繁琐
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  There are different ways of playing the game,
  条条大路通罗马
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  and some of us find great pride
  当找到简单的方法来理解问题时
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  in finding the most simple way to understand something.
  我们会很有成就感
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  That's certainly my trademark;
  这就是我的准则