In the universe we-- Who knows what is out there in the universe but at least on Earth we may well be the only people there are.

在宇宙中，我们-,谁知道宇宙中有什么,但至少在地球上我们很可能是唯一的。

耶鲁公开课 - 死亡课程节选

There's a short story by the science fiction writer Orson Scott Card, where the basic point of the story is that of all the life forms in the universe, we, here on Earth, are the only ones that are mortal.

科幻作家Orson，Scott，Card写了一个短故事，该故事的主旨是,在宇宙的所有生命形式中，我们，在地球上是唯一终有一死的生命。

耶鲁公开课 - 死亡课程节选