It's fun to read things when you don't know all the words. Even children love it. One of the things any great children's writer will tell you is that children like it if in books designed for their age group there is a vocabulary just slightly bigger than theirs. So they come up against weird words, and the weird words excite them. If you describe a small girl in a story as loquacious, it works so much better than talkative. And then some little girl will read the book and her sister will be shooting her mouth off and she will say to her sister, Don't be so loquacious. It is a whole new weapon in her arsenal.
Salon interview (1996)