A professor of philosophy at Princeton University, Gideon A. Rosen specializes in metaphysics, epistemology, philosophy of mathematics, and moral philosophy. He is a summa cum laude graduate of Columbia University, where he was elected to Phi Beta Kappa, and of Princeton University, where he held a Whiting Fellowship and earned his Ph.D. in philosophy in 1992. He had begun his teaching career three years earlier at the University of Michigan and returned to Princeton in 1993 as an assistant professor of philosophy. He was promoted to associate professor five years later and named to his present position in 2002. Dr. Rosen currently serves as director of Princeton’s Program in Humanistic Studies, chair of its Council of Humanities, and director of its Stewart Seminars in Religion. He has been a visiting professor at the University of Auckland in New Zealand. A Mellon Foundation New Directions Fellowship allowed him to spend the 2003-04 academic year at New York University Law School where he took first-year law courses and served as the Hauser Fellow in Global Law. Among his other academic honors are a University of Michigan Distinguished Teaching Award and post-doctoral teaching fellowship and Princeton’s Jonathan Dickinson Bicentennial Preceptorship and President’s Award for Distinguished Teaching. In addition to some thirty-five articles published in academic journals, Dr. Rosen is the author (with John P. Burgess) of A Subject with No Object: Strategies for Nominalist Reconstrual in Mathematics (Oxford University Press, 1997), in which he argues that while standard mathematics is, in a certain sense, dispensable for most applications, the philosophical significance of this fact has been vastly overstated: the ‘dispensability’ of mathematics, properly understood, provides no reason whatsoever to doubt the claims of standard mathematics.