Leibniz is a constant, but often overlooked, presence in Deleuze’s philosophy. This book explains three key moments in Deleuze’s philosophical development through the lens of his engagement with Leibniz. In doing so it hopes to offer a focused framework for understanding some of the most difficult aspects of Deleuze’s philosophy. Part One examines Deleuze’s account of the “anti-Cartesian reaction” of Spinoza and Leibniz which culminates in their two competing theories of expression. It argues that in some key respects Deleuze favours Leibniz’s interpretation of this key concept over Spinoza’s. ... More

Leibniz is a constant, but often overlooked, presence in Deleuze’s philosophy. This book explains three key moments in Deleuze’s philosophical development through the lens of his engagement with Leibniz. In doing so it hopes to offer a focused framework for understanding some of the most difficult aspects of Deleuze’s philosophy. Part One examines Deleuze’s account of the “anti-Cartesian reaction” of Spinoza and Leibniz which culminates in their two competing theories of expression. It argues that in some key respects Deleuze favours Leibniz’s interpretation of this key concept over Spinoza’s. Part Two looks at Deleuze’s critique of representation and his attempt to create a theory of difference that will underlie, rather than rely upon, conceptual opposition. It examines the crucial role played by the Leibnizian concepts of incompossibility and divergence in Deleuze’s theory of ‘vice-diction’, created in order to offer a sub-representational, or pre-individual, substitute for Hegelian contradiction. Part Three looks in detail at one of Deleuze’s last major works, The Fold. It argues for Leibniz’s central place in this text, and shows how Deleuze uses concepts from across Leibniz’s philosophy and mathematics as a framework to articulate a systematic account of his own mature philosophy.