I have often argued to students, only in part to be perverse, that one cannot understand the history of education in the United States during the twentieth century unless one realizes that Edward L. Thorndike won and John Dewey lost. The statement is too simple, of course, but nevertheless more true than untrue and useful for several reasons. First, it suggests that, even if Thorndike and Dewey both spoke and wrote in the “progressive” idiom, the differences of view that separated them were large and significant. Beyond that, it calls attention to differences in the way each man's ideas were received. If Dewey has been revered among some educators and his thought has had influence across a greater range of scholarly domains—philosophy, sociology, politics, and social psychology, among them—Thorndike's thought has been more influential within education. It helped to shape public school practice as well as scholarship about education. Finally, the observation that Thorndike won and Dewey lost has value because it can open new questions about the Deweyan legacy, which, despite the many extant studies (some of which are excellent), remains richly suggestive and worthy of further exploration.