on art and science

"Jerry, on the other hand, didn't learn much physics. His mind wandered too easily. ... When I tried to show him how an electromagnet works by making a little coil of wire and hanging a nail on a piece of string, I put the voltage on, the nail swung into the coil, and Jerry said, "Ooh! It's just like fucking!" So that was the end of that."

From Richard P. Feynman, Adventures of a Curious Character.