Wow, I didn’t realize that C.S. Lewis was riffing off of 1 Corinthians: 13 when he wrote (emphasis mine)

When I was ten, I read fairy tales in secret and would have been ashamed 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.