Dedication 致谢

This book is dedicated to my kids, without whom I never would have written it, and to Kristen, because I always promised my first book would be for her. Without her, there'd be no book. 这本书献给我的孩子们， 没有他们，我永远也写不出这本书， 也献给克里斯汀，因为我一直承诺我的第一本书会献给她。 没有她，就没有这本书。