But the current swine flu is a new strain to which humans have no immunity and against which existing vaccines offer no protection.

VOA: standard.2009.04.30

Second of all the motif of guards who block access to the tree of life suggests that no humans have access to immortality and the pursuit of immortality is futile.

第二点，那些阻止人类接近生命树的守卫,暗示着，任何人类关于永生的尝试,最后都是徒劳一场。

耶鲁公开课 - 旧约导论课程节选

But Descartes said that can't be because there are things that humans do that no machine could ever do.

但是笛卡尔否定了这一观点,因为有些事情,人类可以做到,机器永远不可能做到

耶鲁公开课 - 心理学导论课程节选

If there's no human nature, then there's no sense in which one group of humans by dint of their race or their sex could be better than another group.

如果不存在人性，那么一群人因种族或性别,优于另一群的人的说法,便纯属无稽之谈。

耶鲁公开课 - 心理学导论课程节选