That's the focus of our attention in Genesis, and it's only at the end of the story that the tree of life appears again in the passage that is emphasizing its permanent inaccessibility.

这点，是我们读《创世纪》时，应该特别注意的一点,直到故事的结束，生命树才又出现,是为了强调人类，永远无法接近它。

耶鲁公开课 - 旧约导论课程节选

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