Daniel Heller-Roazen is the Arthur W. Marks '19 Professor of Comparative Literature and the Council of the Humanities at Princeton University. He is the author of "Echolalias: On the Forgetting of Language; The Inner Touch: Archaeology of a Sensation; The Enemy of All: Piracy and the Law of Nations"; and "The Fifth Hammer: Pythagoras and the Disharmony of the World", all published by Zone Books.