This all came hard and at the cost, I'm sure, of a lot of human life and a lot of misery.

一切都变得艰难了,我确定,这夺走了很多人的生命,造成了很多痛苦

耶鲁公开课 - 古希腊历史简介课程节选

Some people argued that there are certain things that are just categorically wrong even if they bring about a good result, even if they saved five people at the cost of one life.

有些人认为,某些行为反正就是绝对错误的,即便该行为产生了好的结果，即便能牺牲一人挽救五人性命。

耶鲁公开课 - 公正课程节选

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