The best morals kids get from any book is just the capacity to empathize with other people, to care about the characters and their feelings. So you don't have to write a preachy book to do that. You just have to make it a fun book with characters they care about, and they will become better people as a result.
Louis SacharYou're responsible for yourself. You messed up your life, and it's up to you to fix it. No one else is going to do it for you -- for any of you.
Louis SacharI didn't become a good writer until I learned how to rewrite. And I don't just mean fixing spelling and adding a comma. I rewrite each of my books five or six times, and each time I change huge portions of the story.
Louis Sachar