The Fifth Corner of Four: An Essay on Buddhist Metaphysics and the Catuṣkoṭi. By Graham Priest. New York: Oxford University Press, 2018. 208 pages. $60.00 (hardcover). ISBN 9780198758716. Matthew T. Kapstein École Pratique des Hautes Études, Paris, and the University of Chicago The author of The Fifth Corner of Four, Graham Priest, is well known to contemporary students of logic,…