How did our universe come to be? Does God exist? Does time flow? What are we? Do we have free will? What is truth? Metaphysics is concerned with the nature of ourselves and the world around us. This clear and accessible introduction covers the central topics in metaphysics in a concise but comprehensive way. Brian Garrett discusses the crucial concepts and arguments of metaphysics in a highly readable manner. This third edition has been thoroughly revised. Most chapters include new and updated material, and there are now two chapters devoted to attacks on free will and fatalism.