“When I was ten, I read fairy tales in secret, and would have been embarrassed if I had been found doing so. Now that I am fifty, I read them openly. When I became a man, I put away childish things, including the fear of childishness and the desire to be very grown up.”
—C.S. Lewis

“Well of course I'm being childish; there's no point in being grown up if you can't be childish sometimes!”
—The Doctor (4th incarnation)