In nineteen ninety-six, a NASA study announced the discovery of what appeared to be the mineral remains of very simple forms of life in the Allan Hills meteorite.

VOA: special.2010.07.28

But on the other hand these advances have also come at a cost. And in this story there's also a sense of longing for the freedom of life in the wild--the innocent, simple, uncomplicated life lived day to day without plans, without toil, in harmony with nature Edenic a somewhat Edenic existence.

但是，换个角度来看，人类付出了代价,才得到这些优点，在这部史诗中，同样存在着,对一种纯真，简单，纯粹生活的向往,每天生活中没有计划，辛劳，与自然和平相处,就像以前的。

耶鲁公开课 - 旧约导论课程节选

Swan says his early mentors instilled in him a simple environmental ethic that has guided him through life: "That was that at the end of our expeditions, we would always leave wherever we went,clean and tidy, take away our garbage, take away everything, just leave our footsteps."

VOA: standard.2009.12.10