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

If only you'd known you were only going to have 20 more years instead of 50 more years, you would've picked a different kind of life for yourself.

如果你知道你只剩下,20年而不是50年，你就会为自己选择另一种生活。

耶鲁公开课 - 死亡课程节选