Abstract

In this book, Yitzhak Y. Melamed offers a new and systematic interpretation of the core of Spinoza’s metaphysics. In the first part of the book, he proposes a new reading of the metaphysics of substance in Spinoza. Against Curley's influential reading, he argues that for Spinoza modes both inhere in and are predicated of God. Using extensive textual evidence, he shows that Spinoza considered modes to be God's propria. Against the claim that it is a category mistake to consider things as properties, he argues that the distinction between things and properties has been thoroughly undermined both in the early modern period and in contemporary metaphysics (in bundle theories, and some versions of trope theory). He goes on to clarify Spinoza’s understanding of infinity, mereological relations, infinite modes, and the flow of finite things from God’s essence. In the second part of the book, Melamed relies on this interpretation of the substance-mode relation and the nature of infinite modes and puts forward two interrelated theses about the structure of the attribute of Thought and its overarching role in Spinoza's metaphysics. First, he shows that Spinoza had not one, but two independent doctrines of parallelism. The Ideas-Things Parallelism stipulates an isomorphism between the order of ideas in the attribute of Thought and the order of things in nature. The Inter-Attributes Parallelism establishes an isomorphism among the order of modes in each of the infinitely many attributes. He shows that these two doctrines are independent of each other and that each has different implications. Relying on this clarification of the doctrines of parallelism, Melamed develops his final main thesis. Here he argues that, for Spinoza, ideas have a multifaceted (in fact, infinitely faceted) structure that allows one and the same idea to represent the infinitely many modes which are parallel to it in the infinitely many attributes. Thought turns out to be coextensive with the whole of nature. Spinoza cannot embrace an idealist reduction of Extension to Thought because of his commitment to the conceptual separation of the attributes. Yet, within Spinoza's metaphysics, Thought clearly has primacy over the other attributes insofar as it is the only attribute which is as elaborate, as complex, and, in some senses, as powerful as God.