Louis Menand is the Anne T. and Robert M. Bass Professor of English at Harvard University. His areas of interest include 19th and 20th century cultural history. His books include the Pulitzer Prize-winning "The Metaphysical Club" (2001), "Pragmatism: A Reader" (1996), and "Discovering Modernism: T. S. Eliot and His Context" (1987). His most recent volume, "The Marketplace of Ideas," was published by W. W. Norton & Co. in 2010. He is a staff writer for The New Yorker and contributes frequently to The New York Review of Books and other publications.