Christia Mercer

In his thoughtful and generous review of my book, Leibniz’s Metaphysics: Its Origins and Development, Cees Leijenhorst accepts many of its most radical conclusions: that Leibniz’s metaphysics evolved out of an attempt to combine ideas gathered from the great philosophers of the past and to do so in a manner that would solve the theological, legal, and philosophical questions that most concerned him; that although Leibniz’s notion of substance developed out of his interpretation of the philosophy of Aristotle, his conception of the relation between God and creatures has its roots in the Platonism that he learned as a young man in Leipzig and Jena; that the views constituting the core doctrines of the mature philosophy were conceived by the time Leibniz went to Paris in early 1672; and that Leibniz rejects the reality of passive extended matter and embraces his own version of idealism as early as 1671. I am tempted to respond with a loud rodeo yell and end it at that. But because the few points on which.

The Preface to Leibniz's famous Theodicy offers a perspective on the work that has been insufficiently studied. In this paper, I ask that we step back from the main text of the Theodicy and attend to its Preface. I show that the latter performs two crucial preparatory tasks that have not been properly appreciated. The first is to offer a public declaration of what I call Leibniz’s radical rationalism. The Preface assumes that any attentive rational being is capable of divine knowledge. The basic idea is that it is knowledge about a divine perfection that can be understood more or less completely. In the Preface, Leibniz entices his readers to seek such knowledge and explains why doing so has been so difficult before now. What makes this rationalism radical is that divine knowledge is severed from any religion or set of religious beliefs. While some Christian doctrines make it easier to approach God, they are neither necessary nor sufficient to do so. The author of the Theodicy thereby informs his readers that they have access to divine perfections, regardless of religious affiliation. To acquire such knowledge, they need only work through his book. The second task of the Preface is closely related to the first. It invites readers to seek divine love and virtue. To set themselves on the path to virtue, they need only avoid the pitfalls of religion and use reason in the right way to grasp a divine perfection. Once they enter the main text of the Theodicy, they have begun that journey.