Equal Rites (Discworld, #3; Witches, #1)

by Terry Pratchett

Time passed, which, basically, is its job.

as you grow older you’ll find most people don’t set foot outside their own heads much.

“They say a little knowledge is a dangerous thing, but it is not one half so bad as a lot of ignorance.”

He was stupid, yes, in the particular way that very clever people can be stupid,