Book excerpt: This monumental work reveals the continuities that underlie the changing surface of Chinese life from late imperial days to modern times. With a perspective that encompasses a thousand years of Chinese history, China's Motor provides a view of the social, economic, and political principles that have prompted people in widely varying circumstances to act, believe, and behave in ways that are labeled as Chinese. This original reinterpretation of Chinese culture, as meticulous in detail as it is vast in scope, will revise not only the study of China but also the very terms of social analysis.