Internet Zhou yi friends I have met: Bruce, Denis, Harman, LiSe, Steve, Hilary, and Luis; particularly, I owe the formidable Stephen Karcher many thanks for his early interest and encouragement for the first drafts. Imai Toshiko deserves credit for her wonderful preparation of some illustrations in the text. I want to thank the staff of Cambria Press for their vision, encouragement, and exquisite editing, without which many more grievous errors than now remain would have appeared. I profoundly apologize to my family for all the arduous sacrifices exacted during the decades this work was becoming a book.