This book attempts to resolve one of the oldest and bitterest controversies between the Eastern and Western Christian churches: namely, the dispute about the doctrine of deification. A. N. Williams examines two key thinkers, each of whom is championed as the authentic spokesman of his own tradition and reviled by the other. Taking Aquinas as representative of the West and Gregory Palamas for the East, she presents fresh readings of their work that both reinterpret each thinker and show an area of commonality between them much greater than has previously been acknowledged.