One day in 1938, John Dewey addressed a room of professional educators and urged them to take up the task of "finding out just what education is." Reading this lecture in the late 1940s, Philip W. Jackson took Dewey's charge to heart and spent the next sixty years contemplating his words. The stimulating result of a lifetime of thinking about educating, What Is Education? is a profound philosophical exploration of how we transmit knowledge in human society and how we think about accomplishing that vital task. Most contemporary approaches to education follow a strictly empirical track,...