Preface.- List of Contributors.- Nature and Norms in Thought Martin Lenz (University of Groningen) and Anik Waldow( University of Sydney) .- Part I Nature's Influence on the Mind.- Intentionality Bifurcated: A Lesson from Early Modern Philosophy? Lionel Shapiro.- Ideas as Thick Beliefs: Spinoza on the Normativity of Ideas Martin Lenz.- Three Problems...