One thing, maybe not the only thing, but at least one thing, that goes into a life worth having is enjoying it, is pleasure.

有一样东西也许不是唯一但有一样东西，在生命中是值得拥有的,就是享受，就是快乐。

耶鲁公开课 - 死亡课程节选

The very motion of our life is towards happiness."

我们生命的主要活动是寻找快乐“

哈佛公开课 - 幸福课课程节选