Dr. Robert S. Dupree is Professor of English at the University of Dallas, Director of Library and University Research, Director of the Program in Comparative Literary Traditions, and Chair of Modern Languages and Literature. He is proficient in several languages and is a recognized authority on literary theory and the literary genres, including tragedy, about which he writes in this paper, which is titled “The Ties that Blind: Unity and Tragedy, Purity and Danger.” He holds a B.A. from the University of Dallas and a M.A. and Ph.D. from Yale University.