Why does an act of consent make such a moral difference, that an act that would be wrong taking a life without consent, is morally permissible with consent?

为什么征得了同意，就能在道德上如此不同呢，没有征得同意就杀人，在道德上是不允许的，征得同意就是允许的吗？

耶鲁公开课 - 公正课程节选

- Well-- -- I'm-- maybe-- I'm sorry, maybe-- -- No, no, no, no. I-- I think-- -- That's not a-- I-- I think the Bubble Sort would be the wrong way to go.

笑声】，嗯-,我，很抱歉，可能是-,不，不……，我觉得-,那不是-,我觉得冒泡排序应该不是正确的方法。

哈佛公开课 - 计算机科学课程节选

If he had all of that,it's not so clear to me that it would be the wrong thing to say that, by golly,this is Napoleon.

如果他都拥有这些，那我就不太确定，这么说是否错误了，天哪，这是拿破仑。

耶鲁公开课 - 死亡课程节选

And why would it be wrong? That what I want to hear.

为什么是错误的，我想听听理由。

耶鲁公开课 - 公正课程节选

But "Descarteson" Would be wrong when he says that.

但是,笛卡尔森说错了

耶鲁公开课 - 死亡课程节选