The publication of The Marketplace of Ideas has precipitated a lively debate about the future of the American university system: what makes it so hard for colleges to decide which subjects are required? Why are so many academics against the concept of interdisciplinary studies? From his position at the heart of academe, Harvard professor Louis Menand thinks he's found the answer. Despite the vast social changes and technological advancements that have revolutionized the society at large, general principles of scholarly organization, curriculum, and philosophy have remained remarkably static....