So I'm just curious you got your PHD from Harvard, ; you undergraduated at Harvard; tell me starting out, what fascinated you when you were an undergraduate at Harvard.

不过我很好奇，您本科是在哈佛大学，在哈佛毕业;,能不能谈一下，是什么,让您在哈佛大学时充满激情呢。

普林斯顿公开课 - 人性课程节选