Five-year-old boy: I have a tooth that’s loose! It’s gonna come out, and then I’m gonna put it under a pillow, and then I’m gonna get money and buy a tooth, and then I’m gonna put it under my pillow and get money and buy a toy, and then an adult tooth will grow in.
Librarian: Wow! You learn something new every day!
Five-year-old boy: It’s the basic law of science.

Library
Bronxville, New York