The basic work for this book was carried out during the spring of 1989 in Edinburgh, where I had been granted a research position at The Institute for Advanced Studies in the Humanities. I should like to express here my indebtedness to the Institute for the opportunity thus afforded me. I should also like to say how very grateful I am for the stimulating conversations I had there with Professor Timothy Sprigge and Dr. Elizabeth Telfer. Dr. Telfers’s own treatise Happiness (...) has been a major influence on my view of the questions involved. The basic view of health and illness presented in this book is more fully set out in my On the Nature of Health. As in the case of my previous larger projects, I have received a great amount of support and may wise comments from Professor Ingmar Pörn, Helsinki. Three Danish experts – Anton Aggernaes, Erik Ostenfeld and Peter Sandøe – have made valuable comments. Professor Heng ten Have, Nijmegen, has improved my reading of the philosophy of Jeremy Bentham. I should also like to thank my colleagues at the Department of Health and Society, University of Linköping, for helping me to avoid a number of the pitfalls that can so easily stumble into when it comes to a treatise like this. Especially I should like to mentioned Per-Erik Liss, Ingemar Nordin and Bo Petersson, all three of whom have read and commented on the entire manuscript. A Swedish version of this book, Livskvalitet och hälsa, came out in 1991. I have been made quite a number of corrections and additions, one type of addition being replies to critical points made in reviews of the Swedish version. I should like to thank Malcolm Forbes for valuable help putting my English into publishable condition. Linköping, May 1993 Lennart Noredenfelt. (shrink)