This book is essential reading for those working on Descartes and early modern philosophy. It presents an independent reading on issues of perennial interest, such as Descartes’s views on error, truth and falsehood. It also makes important contributions to topics that have been the focus of much recent scholarship, such as Descartes’s ethics and his theodicy. Those working on the interface between medieval and modern philosophy will find the discussions on Descartes’s debt to predecessors like Suárez and Augustine invaluable.