Donald C. Abel is Professor of Philosophy at St. Norbert College in De Pere, Wisconsin. He holds a B.A. in Philosophy from Gonzaga University, an M.A. in Philosophy from Tulane University, a Ph.L. in Philosophy from St. Michael's Institute, an M.Div. in Theology from Loyola University of Chicago, and a Ph.D. in Philosophy from Northwestern University. He is the author of Freud on Instinct and Morality (1989), Theories of Human Nature: Classical and Contemporary Readings (McGraw-Hill, 1992), and Fifty Readings in Philosophy (McGraw-Hill, 1994). Professor Abel also edits Discourses, the philosophy section of Primis, McGraw-Hill's electronic database for publishing customized textbooks. He has received two awards for excellence in teaching, and an award for outstanding scholarship. He is a member of the American Philosophical Association, the American Catholic Philosophical Association, the Society for Ancient Greek Philosophy, and the Society for Philosophy and Psychology.Abel, Donald C. is the author of 'Fifty Readings Plus An Introduction To Philosophy' with ISBN 9780072979008 and ISBN 0072979003.