But thinking about suspended animation suggests that we may actually need a third category, suspended-- neither alive nor dead.

但是说到假死状态,我们就需要第三种可能了-,既不是死亡也不是生存。

耶鲁公开课 - 死亡课程节选

You need hybrids, in order to improve the category of what you're doing.

你必须用杂交来改良品种

耶鲁公开课 - 古希腊历史简介课程节选

Other things like sexual orientation are used as a category by which some people, for religious reasons, need to have a certain level or kinds of rights or be excluded from others and also of course, certain obligations and duties first.

其他的像性取向也会作为一类区别,这些情况下，有些人出于宗教原因，需要有某些层次或者种类的权利,或者要和别人区别开来，当然，首先是要履行一定的责任义务。

普林斯顿公开课 - 人性课程节选