And he has a theory about early life and perfectly appropriate as far as one can tell of what pre-human form he studied.

他有一个有关早期生命的理论,一般人都会觉得很正常,他研究人类之前的生命形式没有什么不合适。

普林斯顿公开课 - 人性课程节选

Previously to this most recent discussion, I talked about the value of life.

在这个最近的讨论之前，我谈到了生命的价值。

耶鲁公开课 - 死亡课程节选

But I've been focused on the question about the end of life.

但我之前一直集中在探讨生命的终结。

耶鲁公开课 - 死亡课程节选

Now, in thinking about these points, ... in effect I'm suggesting that the value of your life-- so ,we previously were talking about different theories of well-being ? and what makes for the best kind of life.

考虑这些观点的时候，实际上我建议你的生命价值-,我们之前谈到了,幸福的各种理论,即最美好的生活是怎样的。

耶鲁公开课 - 死亡课程节选