This new edition includes a substantial postscript by the author, in which he responds to thirty years of discussion, criticism and further work in the field to ...

Challenging, with several powerful arguments, some of our deepest beliefs about rationality, morality, and personal identity, Parfit claims that we have a false view about our own nature. It is often rational to act against our own best interersts, he argues, and most of us have moral views that are self-defeating. We often act wrongly, although we know there will be no one with serious grounds for complaint, and when we consider future generations it is very hard to avoid conclusions (...) that most of us will find very disturbing. (shrink)

Natural law theory has been undergoing a revival, especially in political philosophy and jurisprudence. Yet, most fundamentally, natural law theory is not a political theory, but a moral theory, or more accurately a theory of practical rationality. According to the natural law account of practical rationality, the basic reasons for actions are basic goods that are grounded in the nature of human beings. Practical rationality aims to identify and characterize reasons for action and to explain how choice between actions worth (...) performing can be appropriately governed by rational standards. These standards are justified by reference to features of the human goods that are the fundamental reasons for action. This book is a defence of a contemporary natural law theory of practical rationality, demonstrating its inherent plausibility and engaging systematically with rival egoist, consequentialist, Kantian and virtue accounts. (shrink)

This is a major work in moral philosophy, the long-awaited follow-up to Parfit's 1984 classic Reasons and Persons, a landmark of twentieth-century philosophy. Parfit now presents a powerful new treatment of reasons and a critical examination of the most prominent systematic moral theories, leading to his own ground-breaking conclusion.

Temkin presents a new way of thinking about equality and inequality that challenges the assumptions of philosophers, welfare economists, and others, and has significant implications on both a practical and theoretical level.

Traditional ethical theories have paradoxical implications in regards to questions concerning procreation and our moral duties to future people. It has been suggested that the crux of the problem resides in an all too ‘impersonal’ axiology and that the problems of population axiology can be solved by adopting a ‘Person Affecting Restriction’ which in its slogan form states that an outcome can only be better than another if it is better for people. This move has been especially popular in the (...) context of medical ethics where many of the problems of population axiology are actualized. Examples are embryo or egg selection, pre-implantation genetic testing, assisted reproduction programmes, abortion, just to mention a few. I discuss a number of different interpretations of the Restriction and in particular one interpretation which I call Comparativism. According to this view, we should draw a distinction between uniquely and non-uniquely realizable people. The former people only exist in one out of two possible outcomes, whereas the latter exist in both of the compared outcomes. The idea is that we should give more weight to the well-being of non-uniquely realizable people or take it into account in a different way as compared to the well-being of uniquely realizable people. I argue that the different versions of the Person Affecting Restriction and Comparativism either have counterintuitive implications of their own or are compatible with traditional theories such as Utilitarianism. (shrink)

This essay argues that Mark C. Murphy's original contribution to natural law ethics succeeds in finding a way between older metaphysical and newer purely practical approaches in this genre. Murphy's reconstruction of the function argument, critique of subjectivist theories of well-being, and rigorous formulation of a flexible welfarist theory of value deserve careful attention. I defend Kant against Murphy's critique and argue that Murphy faces the problem of showing that all his basic goods are morally inviolable. Although I endorse Murphy's (...) critique of radical virtue ethics, I raise objections to the basic moral norms he derives from his list of goods, and to the analysis of peace of mind and happiness as basic goods. (shrink)

In this book Larry Temkin examines the concepts of equality and inequality, and addresses one particular question in depth: how can we judge between different sorts of inequality? When is one inequality worse than another? Temkin shows that there are many different factors underlying and influencing our egalitarian judgments and that the notion of inequality is surprisingly complex. He looks at inequality as applied to individuals and to groups, and at the standard measures of inequality employed by economists and others, (...) and considers whether inequality matters more in a poor society than a rich one. The arguments of non-egalitarians are also examined. Temkin's book presents a new way of thinking about equality and inequality which challenges the assumptions of philosophers, welfare economists, and others concerned with these notions on a practical as well as a theoretical level. (shrink)

The person-affecting restriction, in its slogan form, states that an outcome can be better than another only if it is better for someone. It has a strong intuitive appeal and several theorists have suggested that it avoids certain counterintuitive implications in population ethics. At the same time, the restriction has highly counterintuitive implications and yields non-transitive orderings in some nonidentity cases. Many theorists have taken this criticism to be decisive. Recently, however, there have been some reformulations of the restriction, suggesting (...) that the restriction survives this “old” criticism. This paper investigates the viability of those reformulations, which are versions of “Comparativism,” and argues that most of them either have counterintuitive implications or are extensionally equivalent with impersonal theories, but that “Soft Comparativism” seems to have an advantage over impersonal theories. (shrink)

John Harris argues that opponents of human embryonic stem cell research, Catholics specifically, suffer an inconsistency in their moral thinking, opposing it on the basis that the sacrifice of an embryo is impermissible even for the good of curing disease. They have no objection to natural procreation, however, which results in many early miscarriages. Harris contends that Catholics tacitly endorse these miscarriages as a permissible sacrifice for the good of producing other, healthy children. This paper offers a response to the (...) argument that relies on only basic moral principles that Harris himself is likely to accept. National Catholic Bioethics Quarterly 12.3 (Autumn 2012): 461–476. (shrink)

The American Journal of Bioethics, Volume 12, Issue 4, Page 24-26, April 2012.