The Publisher: Henry Luce and His American Century By Alan Brinkley (Knopf, 531 pp., $35) I. Sometimes human beings bring sociological theory to life. Consider the career of Henry Luce. A child of Presbyterian missionaries in China, he pursued wealth and power with unremitting zeal, creating the media empire that dominated American journalism for much of the twentieth century: Time, Inc. Yet Luce never lost touch with his didactic origins, never abandoned the conviction that his magazines should teach Americans the right way of thinking about the world.