The Tolkien Reader Quotes

“Supernatural is a dangerous and difficult word in any of its senses, looser or stricter. But to fairies it can hardly be applied, unless super is taken merely as a superlative prefix. For it is man who is, in contrast to fairies, supernatural; whereas they are natural, far more natural than he. Such is their doom.”
― J.R.R. Tolkien, Tolkien On Fairy-stories