Interesting things happen along borders - transitions - not in the middle where everything is the same.

Can't you see that everyone is buying station wagons?

Humans needed water or they would die, but dirty water killed as surely as thirst. You had to boil it before you drank it. This culture around tea was a way of tiptoeing along the knife edge between those two ways of dying.

[Emacs] is written in Lisp, which is the only computer language that is beautiful.

We are all susceptible to the pull of viral ideas. Like mass hysteria. Or a tune that gets into your head that you keep humming all day until you spread it to someone else. Jokes. Urban legends. Crackpot religions. Marxism. No matter how smart we get, there is always this deep irrational part that makes us potential hosts for self-replicating information.

I think that this vein is close to being mined out already, but I'll say that my knowledge of and talent for linguistics are quite limited and I'm not aware of being a hell of a lot more interested in that topic than I am in others.

The difference between ignorant and educated people is that the latter know more facts. But that has nothing to do with whether they are stupid or intelligent.