How diseases spread, how they can be treated or cured, when they kill somebody.

病情如何蔓延,应该怎样治疗或治愈疾病,它们什么时候会置人于死地

耶鲁公开课 - 死亡课程节选

We have no right to put you in a circumstance where you believe you killed somebody and then tell you it was just pretend-- we just made you kill somebody.

但我们没权把别人置于这种境地,让他们以为自己杀了人,然后又告诉他们，那个人只是装死的-,我们叫你杀了人。

耶鲁公开课 - 心理学导论课程节选

When monkeys get together to kill and eat somebody they make a kind of a laughing noise and chimpanzees laugh when they tickle each other.

猴子一起猎杀其他动物时,它们会发生出一种笑声,黑猩猩胳肢时也会笑。

耶鲁公开课 - 心理学导论课程节选