If you're a doctor and you've got a patient who's running away from you at the speed of light, you'll know what to do.

如果你是个医生,你的一个病人以光速逃跑了,你就知道该怎么办了

耶鲁公开课 - 基础物理课程节选

If the doctor goes in and yanks the organs from the healthy patient who came in for a checkup to save five lives, there would be adverse effects in the long run.

如果那位医生,偷摘走那位来体检的,健康人的器官,去挽救另外五人，这事从长远来看，会有负面影响。

耶鲁公开课 - 公正课程节选