Introduction: hat is metaphysics? / Robin Le Poidevin -- History of metaphysics -- Introduction to part I: MJillennia of metaphysics / Peter Simons -- Pre-socratic themes : being, not-being and mind / David Sedley -- Plato : arguments for forms / Richard Patterson -- Aristotle : form, matter, and substance / Stephen Makin -- Aristotle : time and change / Ursula Coope -- Medieval metaphysics I : the problem of universals / Claude Panaccio -- Medieval metaphysics II : things, non-things, God, and time / John Marenbon -- Descartes : the real distinction / Dugald Murdoch -- Hobbes : matter, motion, and cause / George MacDonald Ross -- Spinoza : substance, attribute, and mode / Richard Glauser -- Locke : the primary and secondary quality distinction / Lisa Downing -- Leibniz : mind-body causation, and pre-established harmony / Gonzalo Rodriguez-Pereyra -- Berkeley : arguments for idealism / Tom Stoneham -- Hume : necessary connections and distinct existences / Alexander Miller -- Kant : the possibility of metaphysics / Lucy Allais -- Hegel and Schopenhauer : reason and will / Rolf-Peter Horstmann -- Anti-metaphysics I : Nietzsche / Maudemarie Clark -- Bradley : the supra-relational absolute / William Mander -- Whitehead : process and cosmology / Peter Simons -- Heidegger : the question of being / Herman Philips -- Anti-metaphysics II : verificationism and kindred views / Cheryl Misak -- Metaphysics revivified / Avrum Stroll -- Ontology : on what exists -- Introduction to part II