John Kronen got his undergraduate degree at Marquette University in 1985, and his doctorate at the State University of New York at Buffalo.  He studied under Jorge Gracia at Buffalo, and his dissertation concerned the substantial unity of material substances.  He has taught at St. Thomas since 1990.  His areas of specialty include Baroque Scholasticism, Metaphysics, and Indian Philosophy.  He has published several articles in such journals as Faith and Philosophy, Religious Studies, the Review of Metaphysics, and The Modern Schoolmen, and is the co-translator, with Jeremiah Reedy, of Disputation XV of Suarez's Metaphysical Disputations.   He loves opera (especially the operas of Rossini and Wagner), but he hates rap and the philosophy of Hume.  He sometimes thinks his hatred of rap and of Hume's philosophy is irrational, but he has no doubts about the rationality of his love of opera.