Oxford University Press, Walton Street, Oxford OX2 6DP London New York Toronto Delhi Bombay Calcutta Madras Karachi Kuala Lumpur Singapore Hong Kong Tokyo Nairobi Dar es Salaam Cape Town Melbourne Auckland and associated companies in Beirut Berlin Ibadan Mexico City Nicosia Oxford is a trade mark of Oxford University Press Published in the United States by Oxford University Press, New York © Derek Parfit 1984 First published 1984 Reprinted (with corrections) 1984 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 British Library Cataloguing in Publication Data Parfit, Derek Reasons and persons. 1. Motivation (Psychology) I. Title 170 BF683 ISBN 0-19-824615-3 Library of Congress Cataloging in Publication Data Parfit, Derek. Reasons and persons. Includes bibliographical references and index. 1. Ethics. 2. Rationalism. 3. Self. I. Title. BJ1012.P39 1984 170 83-15139 ISBN 0-19-824615-3 Typeset on a Lasercomp at Oxford University Computing Service Printed in Great Britain by Thomson Litho, East Kilbride -iv- |