Nicolas Malebranche's account of the nature of ideas and their role in knowledge and perception has been greatly misunderstood by both his critics and commentators. In this work, Nadler examines Malebranche's theory of ideas and the doctrine of the vision in God with the aim of replacing the standard interpretation of Malebranche's account with a new reading. He argues that Malebranche's ideas should be seen as essences or logical concepts, and that...