Schopenhauer's claim that the essence of the world consists in Wille encounters well-known difficulties. Of particular importance is the conflict of this metaphysical claim with his restrictive account of conceptuality. This paper attempts to make sense of Schopenhauer's position by restoring him to the context of post-Kantian debate, with special attention to the early notebooks and Fourfold Root of the Principle of Sufficient Reason. On the reconstruction suggested here, Schopenhauer's philosophical project should be understood in light of his rejection of post-Kantian metaphilosophy and his opposition to German Idealism.
