Personal Identity Edited by Raymond Martin and John Barresi äjk Blackwel Publishing Editorial material © 2003 by Blackwell Publishing Ltd 350 Main Street, Maiden, MA 02148-5018, USA 108 Cowley Road, Oxford OX4 IJF, UK 550 Swanston Street, Carlton South, Melbourne, Victoria 3053, Australia Kurfürstendamm 57, 10707 Berlin, Germany The right of Raymond Martin and John Barresi to be identified as the Authors of the Editorial Material in this Work has been asserted in accordance with the UK Copyright, Designs and Patents Act 1988. Al l 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, mechan- ical, photocopying, recording or otherwise, except as permitted by the UK Copy- right, Designs, and Patents Act 1988, without the prior permission of the publisher. First published 2003 by Blackwell Publishing Ltd Library of Congress Cataloging-in-Publication Data has been applied for. ISBN 0-631-23441-1 (hardback); ISBN 0-631-23442-X (paperback) A catalogue record for this title is available from the British Library. Typeset in 10/12.5pt Palatino by Kolam Information Services Pvt. Ltd, Pondicherry, India Printed and bound in the United Kingdom by MPG Books, Bodmin, Cornwall For further information on Blackwell Publishing, visit our website: http: / / www.blackwellpublishing.com To David Lewis (1941-2001) and Robert Nozick (1938-2002) in recognition of their contributions to personal identity theory Contents Contributors ix Preface xi Acknowledgments xi Introduction: Personal Identity and What Matters in Survival : An Histor ical Overv iew 1 Raymond Martin and John Barresi 1 The Self and the Future 75 Bernard Williams 2 Personal Identity through Time 92 Robert Nozick 3 W h y O u r Identity Is N o t What Matters 115 Derek Parfit 4 Surviva l and Identity 144 David Lewis 5 Personal Identity and the U n i t y of Agency: A Kant ian Response to Parfit 168 Christine M. Korsgaard 6 Fission and the Focus of One's Life 184 Peter linger 7 Surv iv ing Matters 199 Ernest Sosa v i i i Contents 8 Fision Rejuvenation 216 Raymond Martin 9 Empathie Access: The Mis s ing Ingredient in Personal Identity 238 Marya Schechtman 10 H u m a n Concerns without Superlative Selves 260 Mark Johnston 1 The Unimportance of Identity 292 Derek Parfit 12 An Argument for A n i m a l i s m 318 Eric T. Olson 13 The Self 35 Galen Strawson Boks on Personal Identity since 1970 378 Index 382 Contributors John Barresi is Professor of Psychology at Dalhousie University. He has written in the areas of personology, social cognition, philosophical psych- ology and the history of psychology. Wi th Raymond Martin, he authored Naturalization of the Soul: Self and Personal Identity in the Eighteenth Century (2000). Mark Johnston is Professor of Philosophy and Chair of the Philosophy Department at Princeton University. He is the author of a number of influential articles in ethics, philosophy of mind, metaphysics, philosoph- ical logic, and personal identity theory. Christine M. Korsgaard is the Arthur Kingsley Porter Professor of Philosophy at Harvard University. Her books include Creating the Kingdom of Ends (1996) and The Sources of Normativity (1996). She is also a co-editor of Reclaiming the History of Ethics: Essays for John Rawls (1997). David Lewis, recently deceased, taught for most of his career at Prince- ton University. His books include Convention (1969), Counterfactuals (1973), On the Plurality of Worlds (1986), and Parts of Classes (1991). Many of his more important papers are collected in Philosophical Papers (1986). Raymond Martin taught at the University of Maryland before becoming Professor of Philosophy and Chair of the department at Union College. His books include The Past within Us (1989) and Self-Concern: An Experien- tial Approach to What Matters in Survival (1998). Robert Nozick, recently deceased, was Pellegrino University Professor at Harvard University. His books include Anarchy, State, and Utopia (1974), Philosophical Explanations (1981), The Examined Life (1989), The Nature of X Contributors Rationality (1993), and Invariances: The Structure of the Objective World (2001). Eric T. Olson is a fellow at Churchi l l College, Cambridge University. He is the author of a number of influential articles in metaphysics and the philosophy of mind, and also the author of The Human Animal: Personal Identity without Psychology (1997). Derek Parfit is a Senior Research Fellow of A l l Souls, Oxford University. He is also a Fellow of the British Academy and of the American Academy of Arts and Sciences. In addition to Oxford, he has taught at Harvard University and N e w York University. His Reasons and Persons (1984) is perhaps the most influential book of the twentieth century on personal identity theory. Marya Schechtman is Associate Professor of Philosophy at the Univer- sity of Illinois, Chicago. She is the author of a number of influential articles in personal identity theory and the philosophy of mind, and also the author of The Constitution of Selves (1996). Ernest Sosa is Romeo Elton Professor of Natural Theology and Professor of Philosophy at Brown University and Distinguished Visit ing Professor at Rutgers University. He is the author of numerous influential articles in the areas of epistemology, metaphysics, and moral epistemology. Galen Strawson taught at Jesus College, Oxford University, before moving to the University of Reading, where he is Professor of Philoso- phy. His books include Freedom and Belief (1986), The Secret Connexion: Realism, Causation, and David Hume (1989), and Mental Reality (1994). Currently he is working on a book on the self. Peter Unger is Professor of Philosophy at N e w York University. His books include Ignorance: A Case for Scepticism (1975), Philosophical Relativ- ity (1984), Identity, Consciousness and Value (1990), and Living High and Letting Die: Our Illusion of Innocence (1996). Bernard Williams is Emeritus Professor of Mora l Philosophy and Fellow of A l l Souls, Oxford University. In 1999, he was knighted for his contri- butions to philosophy. His books include Descartes: The Project of Pure Inquiry (1979), Moral Luck (1981), and Ethics and the Limits of Philosophy (1985). Many of his most important essays on personal identity are collected in his Problems of the Self (1973). Preface Each of us assumes that we remain who we are, through various changes, from moment to moment, hour to hour, day to day, and so on. We persist until we cease, perhaps at bodily death. Each of us also assumes that one of our most fundamental egoistic desires is to persist. As we say, we want to live. But what accounts for the fact, if it is a fact, that we remain the same persons over time and through various changes? That question is the philosophical problem of personal identity. A n d when, in ordinary cir- cumstances, we want to persist, what is it that we really want - that is, that each of us wants most fundamentally? That question is the philosoph- ical problem of what matters primarily in survival. It is commonly assumed that when people want to persist, what they really want is simply to persist - that is, that their desire to persist cannot be derived from any more fundamental desire. That answer is the thesis that identity is primarily what matters in survival. A l l of the readings in the present anthology are devoted either to answering the philosophical problem of personal identity or to testing the claim that identity is primarily what matters in survival, or both. Inserted into the introductory essay are some classic readings by Locke and Reid. Otherwise all of the readings included have been published since 1970, which is about the time that personal identity theory made a new beginning. The present anthology represents the issues that have emerged in the wake of this new beginning. The introductory essay, "Personal Identity and What Matters in Sur- vival: An Historical Overview," is a substantial development of material some of which has been previously published in Raymond Martin, "Per- sonal Identity from Plato to Parfit," in D. Kolak and R. Martin, eds. The Experience of Philosophy, 4th edn (1999) and 5th edn. (2001), and some in Raymond Mart in and John Barresi, Naturalization of the Soul: Self and Personal Identity in the Eighteenth Century (Routledge, 2000). We have xii Preface also drawn material for our introductory essay from Raymond Mart in and John Barresi, The Rise and Fall of Soul and Self (forthcoming). The chapter by Eric Olson and the "Postscript" by Galen Strawson were written especially for this volume. We are very grateful for these original contributions, which are published here with the kind permis- sion of their authors. Acknowledgments The editor and publisher gratefully acknowledge the permission granted to reproduce the copyright material in this book: Chapter 1 Bernard Will iams, "The Self and the Future," pp. 161-80 from Philosoph- ical Review 79 (1970). Copyright © 1970 Cornell University. Reprinted by permission of the publisher. Chapter 2 Robert Nozick, "Personal Identity through Time," reprinted by permis- sion of the publisher from Philosophical Explanations by Robert Nozick, pp. 29-48,50-1,58-61, and 69. Cambridge, Mass.: The Belknap Press, imprint of Harvard University Press, 1981. Copyright © 1981 by Robert Nozick. Chapter 3 Derek Parfit, " W h y Our Identity Is Not What Matters," pp. 199-201, 209- 10, 245-69, and 271 from Reasons and Persons. Oxford: Oxford University Press, 1984 (repr. 1987) Chapter 4 David Lewis, "Survival and Identity" and "Postscript," pp. 55-70 and 73-7 from Philosophical Papers, vol . 1. Oxford: Oxford University Press, 1983. Copyright © by David Lewis. Chapter 5 Christine M. Korsgaard, "Personal Identity and the Unity of Agency: A Kantian Response to Parfit," from Philosophy and Public Affairs 18:2 (1989), pp. 109-23, © The Johns Hopkins University Press. Reprinted by permis- sion of the Johns Hopkins University Press.