“Why can’t you fly now, mother?”
“Because I am grown up, dearest. When people grow up they forget the way.”
“Why do they forget the way?”
“Because they are no longer gay and innocent and heartless. It is only the gay and innocent and heartless who can fly.”

James Barrie (1860-1937) Scottish novelist and dramatist

Peter & Wendy, ch. 17 (1911)