So, instead, it was amazing he was able to group things in terms of the properties that he saw.

但是，他能够仅仅通过自己知道的那些性质,就能对元素进行归类，这是非常难得的。

麻省理工公开课 - 化学原理课程节选

And what he did what he actually grouped things in terms of their chemical properties.

他所做的，实际上他是根据元素的化学性质,来对它们进行归类的。

麻省理工公开课 - 化学原理课程节选

But it's worth taking a moment to flag the fact that there are people, there are philosophers, who think we can generalize across all humans.

但是值得一提的是，有些人，有些哲学家，认为我们可以把所有人进行归类。

耶鲁公开课 - 死亡课程节选