This book challenges the presupposition among professional philosophers that René Descartes is the Father of Modern Philosophy. It demonstrates by intensive textual analysis of Descartes's Discourse and Meditations that he inaugurated a new type of sophistry rather than a new way of conducting philosophy. Transcendental Sophistry is a synthesis of Renaissance humanism and Christian theology, especially the theology of creation. This striking re-evaluation of the achievement of Descartes opens the history of Western philosophy to radical reinterpretation.