Then for the first time it dawned on him that classing all drowthers together made no more sense than having a word for all animals that can't stand upright on two legs for more than a minute, or all animals with dry noses. What possible use could there be for such classifications? The word "drowther" didn't say anything about people except that they were not born in a Westil Family. "Drowther" meant "not us," and anything you said about drowthers beyond that was likely to be completely meaningless. They were not a "class" at all. They were just... people.

Orson Scott Card, The Lost Gate