Cornelia Funke said this quote

I'm only a kind of book doctor. I can give books new bindings, rejuvenate them a little, stop the bookworms from eating them, and prevent them from losing their pages over the years like a man loses his hair. But inventing the stories in them, filling new, empty pages with right words-- I can't do that. That's a very different trade. A famous writer once wrote, 'An author can be seen as three things: a storyteller, a teacher, or magician-- but a magician, the enchanter, is in the ascendant.