Persons and Causes This page intentionally left blank Persons and Causes The Metaphysics of Free Will TIMOTHY O ' C O N N O R OXFORD UNIVERSITY PRESS OXFORD UNIVERSITY PRESS Oxford New York Auckland Bangkok Buenos Aires Cape Town Chennai Dar es Salaam Delhi Hong Kong Istanbul Karachi Kolkata Kuala Lumpur Madrid Melbourne Mexico City Mumbai Nairobi Sao Paulo Shanghai Singapore Taipei Tokyo Toronto Copyright © 2000 by Timothy O'Connor First published in 2000 by Oxford University Press, Inc. 198 Madison Avenue, New York, New York 10016 www.oup-usa.org First issued as an Oxford University Press paperback, 2002 Oxford is a registered trademark of Oxford University Press All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior permission of Oxford University Press. Library of Congress Cataloging-in-Publication Data O'Connor, Timothy, 1965- Persons and causes : the metaphysics of free will / Timothy O'Connor. p. cm. Includes bibliographical references and index. ISBN 0-19-513308-0; 0-19-515374-X (pbk.) 1. Free will and determinism. I. Title. BJ1461.027 1999 123'.5—dc21 99-20501 1 3 5 7 9 8 6 4 2 Printed in the United States of America on acid-free paper In memory of Norman Kretzmann —teacher, mentor, and friend This page intentionally left blank Acknowledgments Much of this book was composed in St. Andrews, Scotland, in 1996–1997 while 1 was supported by a Gifford Research Fellowship from the University of St. An- drews and by a fellowship from the Pew Scholars Program. I am grateful to both these institutions for their support. I thank the members of the Departments of Logic and Metaphysics and of Moral Philosophy in St. Andrews for their hospital- ity and fruitful philosophical discussion—in particular, Professors Crispin Wright and John Haldane. I have used portions of previous articles of mine, more or less substantially revised, in the present work: "Indeterminism and Free Agency: Three Recent Views," Philosophy and Phenomenological Research 53 (1993); "Thomas Reid on Free Agency," Journal of the History of Philosophy 32 (1994); "Emergent Proper- ties," American Philosophical Quarterly 31 (1994); "Agent Causation," in Agents, Causes, and Events: Essays on Indeterminism and Free Will, ed. T. O'Connor (New York: Oxford University Press, 1995); and "Why Agent Causation?" Philosophical Topics 24 (1996; published by Arkansas University Press). I thank the publishers for permission to incorporate that material here. I have read material ancestral to parts of this book to audiences at meetings of the American Philosophical Association and at the following universities: Arkansas, Brigham Young, Cornell, Edinburgh, Free (Netherlands), Glasgow, Indiana, Notre Dame, Purdue, Seattle Pacific, and St. Andrews. Other philosophers have helped me through private conversation or correspondence. I thank in particular the fol- lowing: David Armstrong, Robert Audi, Roderick Chisholm, Mark Crimmins, Daniel Dennett, Fred Dretske, Laura Ekstrom, John Martin Fischer, Stewart Goetz, Anil Gupta, Bob Hale, William Hasker, Chris Hill, Al Howsepian, Jaegwon Kim, Keith Lehrer, Barry Loewer, David McCarty, Brian McLaughlin, Michael Murray, John O'Leary-Hawthorne, Alvin Plantinga, David Robb, Gregg Rosenberg, William Rowe, Tom Senor, Sydney Shoemaker, Michael Slote, Eleonore Stump, Michael Tye, Peter Unger, Peter van Inwagen, Rene van Woudenberg, Ted Warfield, David Widerker, and Timothy Williamson. VIII ACKNOWLEDGMENTS Now for some special appreciation. I thank my wife, Gail, and our three chil- dren, Brian, Laura, and Lindsay, for their love and joyful companionship. I thank Jonathan Bennett and Samuel Gorovitz, whose article "Improving Aca- demic Writing," Teaching Philosophy (June 1997), struck me to the quick at just the right moment—shortly after I had completed a first draft of this book. The result was a couple of weeks of revising what I had written, line by line. I am not confident that they would be satisfied by my efforts, but what is in your hands is a far more readable text than that which preceded it. (An anonymous reader also deserves credit in this regard.) For help in thinking about the problem of free will, I especially thank Ran- dolph Clarke and Robert Kane, with whom I have corresponded over several years, and above all Carl Ginet, who directed my original Ph.D. thesis on this topic at Cornell University and has been a friendly and trenchant critic ever since. Finally, I acknowledge my great debt to another former teacher, Norman Kretzmann. He inspired in me a love of philosophy, taught me to see its problems through its history, attended meticulously to my work, and extended love and kindness to me in the manner of a father. Sadly, it is a debt I can no longer hope to repay, as Norman died shortly before this book went to press. May 1999 T. O. Bloomington, Indiana Contents Introduction xi 1. Freedom and Determinism 3 1.1 An Ancient Argument 3 1.2 Some Modal Principles and the Argument for Incompatibilism 5 1.3 The Fixity of the Past and of Natural Laws 15 1.4 Freedom and Responsibility 18 2. Freedom and Indeterminism: Some Unsatisfactory Proposals 23 2.1 The Trouble with Incompatibilism 23 2.2 Simple Indeterminism: Carl Ginet on Choice and Control 24 2.3 Causal Indeterminism: The General Strategy and a Problem Posed 27 3. The Agent as Cause: Reid, Taylor, and Chisholm 43 3.1 The Agency Theory 43 3.2 Thomas Reid 43 3.3 Richard Taylor 49 3.4 Roderick Chisholm 55 3.5 Summary 60 Appendix: Chisholm's Later Writings on Agency 61 4. The Metaphysics of Free Will 67 4.1 Overview 67 4.2 Event Causation 68 4.3 Agent Causation 71 4.4 C. D. Broad's Objection to the Very Idea of Agent Causation 74 4.5 Remarks on a Contemporary Alternative Account of Agent Causation 76 4.6 Ersatz Agent Causation? 79 4.7 Alternative Possibilities, Responsibility, and Agent Causation 81