Because I think that's actually the most satisfying life for us to live, personally, to feel that we are really making a difference somehow and we are not living just for ourselves.

我个人认为,最完满的生活，是那种，你能够感受到真正发挥了作用的生活,而不是完全地为自己而活。

普林斯顿公开课 - 人性课程节选

In some way it's not actually a realization of a full life.

某种程度上来说，这并不是,实现了完满的生命。

普林斯顿公开课 - 人性课程节选