This essential core text introduces readers to metaphysics. In thoughtful and engaging prose, Peter van Inwagen examines three profound questions: What are the most general features of the world? Why is there a world? And, what is the place of human beings in the world? The third edition includes an entirely new chapter on ontology. The new chapter presents a theory of the nature of being and proceeds to apply this theory to two problems of ontology: the problem of non-existent objects and the problem of universals. Equally valuable as a textbook in a university course or an introduction to metaphysical thinking for the interested layperson, Metaphysics remains a fascinating book for a wide range of readers, from first-time students to the most sophisticated philosophers. Contents 1. Introduction Part One: The Way the World Is

2. Individuality

3. Externality

4. Temporality

5. Objectivity Part Two: Why the World Is

6. Necessary Being: The Ontological Argument

7. Necessary Being: The Cosmological Argument Part Three: The Inhabitants of the World

8. What Rational Beings Are There?

9. The Place of Rational Beings in the World: Design and Purpose

10. The Nature of Rational Beings: Dualism and Physicalism

11. The Nature of Rational Beings: Dualism and Personal Identity

12. The Powers of Rational Beings: Freedom of the Will

13. Concluding Meditation

14. Coda: Being