Not a day passes, but I get a letter from a child. They come sometimes singly, sometimes in batches of 50 or 100. Entire classes, where school teachers have read my stories, have written to me. I answer every one personally. When I was a child I know how, if I had received a real letter from an author whose book I'd read, I would have been the happiest boy alive. And if I am to do any good in this world my highest ambition will be to make children happy