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

We could say that what I've been presupposing up to this point " is the "neutral container theory" of the value of life.

到目前为止我阐述的前提是,生命价值的“中性容器理论。

耶鲁公开课 - 死亡课程节选

Now, the most natural thing to suggest would be, well, you get clear on your favorite theory about the value of life, whatever that is.

现在，提出的最自然的事情就是，你弄明白你最喜欢的,有关生命价值的理论，不管是什么。

耶鲁公开课 - 死亡课程节选

Some rival theories about what makes life worth living.

一些关于什么让生命值得活下去的反对理论。

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