"You imagine all the ballet recitals you're not going to see, the walks you're not going to take, the boyfriends you are not going to scowl at, and the things they would wonder about me."

VOA: standard.2010.06.19

So, he writes: To the psychologist alone can such questions occur as: Why do we smile when pleased and not scowl?

他这样写到：,对哲学家本身说,会出现这些问题：,为什么开心时我们微笑而非皱眉？

耶鲁公开课 - 心理学导论课程节选