1990 0-88946-276-3 Begins by generally stating the relation between Anselm and Aquinas in arguing for the existence of God, then surveys the history of the tradition of interpretation of Anselm's argument and the Fourth Way of Aquinas, subsequently analyzing them comparatively to show the essential identity between the two arguments. Discusses Thomas Aquinas' supposed rejection of Anselm's Proslogion argument and addresses the viability of the Anselmian-Thomistic argument from degrees of perfection today.