In the American Civil War,there was a draft, but you could avoid it by hiring somebody to take your place, if you were rich enough.

在美国内战期间，曾有过强制征兵，但是你可以让人代替你，如果你足够有钱的话。

耶鲁公开课 - 死亡课程节选

What if we could figure out ways to avoid organ transplantation entirely?

如果我们能发明一种方法,完全淘汰器官移植的话又会怎样

耶鲁公开课 - 生物医学工程探索课程节选