A novel treatment of an issue central to much current work in metaphysics: the distinction between the essential and accidental properties of individuals. Mackie challenges widely held views, and arrives at what she calls "minimalist essentialism," an unorthodox theory according to which ordinary individuals have relatively few interesting essential properties. Mackie's clear and accessible discussions of issues surrounding necessity and essentialism mean that the book will appeal as much to graduate students as it will to seasoned metaphysicians.

This paper argues that the medical conception of health as absence of disease is a value-free theoretical notion. Its main elements are biological function and statistical normality, in contrast to various other ideas prominent in the literature on health. Apart from universal environmental injuries, diseases are internal states that depress a functional ability below species-typical levels. Health as freedom from disease is then statistical normality of function, i.e., the ability to perform all typical physiological functions with at least typical efficiency. (...) This conception of health is as value-free as statements of biological function. The view that health is essentially value-laden, held by most writers on the topic, seems to have one of two sources: an assumption that health judgments must be practical judgments about the treatment of patients, or a commitment to "positive" health beyond the absence of disease. I suggest that the assumption is mistaken, the commitment possibly misdescribed. (shrink)

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)

A transcript of three lectures, given at Princeton University in 1970, which deals with (inter alia) debates concerning proper names in the philosophy of language.

The Human Genome Project will produce information permitting increasing opportunities to prevent genetically transmitted harms, most of which will be compatible with a life worth living, through avoiding conception or terminating a pregnancy. Failure to prevent these harms when it is possible for parents to do so without substantial burdens or costs to themselves or others are what J call “wrongful handicaps”. Derek Parfit has developed a systematic difficulty for any such cases being wrongs — when the harm could be (...) prevented only by preventing the existence of the individual who would have a worthwhile life even with the handicap, then bringing him into existence with the handicap does not make him worse off and so does not wrong him. I argue that a non “person‐affecting” principle requiring the avoidance of suffering and limited opportunity correctly accounts for cases of wrongful handicaps without requiring that the individuals with the handicap have been made worse off and therefore wronged. It is an advantage, not a difficulty, of this account that it does not imply that the person with the handicap has been wronged or is a victim with a special moral complaint. (shrink)

David Armstrong's book is a contribution to the philosophical discussion about possible worlds. Taking Wittgenstein's Tractatus as his point of departure, Professor Armstrong argues that nonactual possibilities and possible worlds are recombinations of actually existing elements, and as such are useful fictions. There is an extended criticism of the alternative-possible-worlds approach championed by the American philosopher David Lewis. This major work will be read with interest by a wide range of philosophers.

This book is a defense of modal realism; the thesis that our world is but one of a plurality of worlds, and that the individuals that inhabit our world are only a few out of all the inhabitants of all the worlds. Lewis argues that the philosophical utility of modal realism is a good reason for believing that it is true.

_Naming and Necessity_ has had a great and increasing influence. It redirected philosophical attention to neglected questions of natural and metaphysical necessity and to the connections between these and theories of naming, and of identity. This seminal work, to which today's thriving essentialist metaphysics largely owes its impetus, is here reissued in a newly corrected form with a new preface by the author. If there is such a thing as essential reading in metaphysics, or in philosophy of language, this is (...) it. (shrink)

Parfit’s (1984) Non-Identity Problem provides a strong line of argument that we cannot be harmed by pre-conception choices or actions. I argue that we can no longer appeal to the Non-Identity problem in order to justify using pre-conception genetic screening and selection techniques as a harmless tool to determine the genetic constitution of future individuals. My criticism of the Non-Identity problem is based on a rejection of the metaphysical foundations of Parfit’s argument - Kripke’s (1980) essentialist arguments for the necessity (...) of origin. I offer an alternative account of modal harms based on counterpart theory such as that offered by David Lewis (1986). On this account, individuals can make legitimate harm claims in regard to pre-conception choices made in determining their genetic constitution by appeal to their counterparts across possible worlds. (shrink)

In footnote 56 of his Naming and Necessity, Kripke offers a ‘proof’ of the essentiality of origin. On its most literal reading the argument is clearly flawed, as was made clear by Nathan Salmon. Salmon attempts to save the literal reading of the argument, but I argue that the new argument is flawed as well, and that it can’t be what Kripke intended. I offer an alternative reconstruction of Kripke’s argument, but I show that this suffers from a more subtle (...) fault. (shrink)

Parfit’s (1984) Non-Identity Problem provides a strong line of argument that we cannot be harmed by pre-conception choices or actions. I argue that we can no longer appeal to the Non-Identity problem in order to justify using pre-conception genetic screening and selection techniques as a harmless tool to determine the genetic constitution of future individuals. My criticism of the Non-Identity problem is based on a rejection of the metaphysical foundations of Parfit’s argument - Kripke’s (1980) essentialist arguments for the necessity (...) of origin. I offer an alternative account of modal harms based on counterpart theory such as that offered by David Lewis (1986). On this account, individuals can make legitimate harm claims in regard to pre-conception choices made in determining their genetic constitution by appeal to their counterparts across possible worlds. (shrink)

_Possible Worlds_ presents the first up-to-date and comprehensive examination of one of the most important topics in metaphysics. John Divers considers the prevalent philosophical positions, including realism, antirealism and the work of important writers on possible worlds such as David Lewis, evaluating them in detail.

To what extent should parents be allowed to use reproductive technologies to determine the characteristics of their future children? Is there something morally wrong with choosing what their sex will be, or with trying to 'screen out' as much disease and disability as possible before birth? Stephen Wilkinson offers answers to such questions.

I shall be concerned in this paper with some philosophical puzzles raised by so-called “wrongful life” suits. These legal actions are obviously of great interest to lawyers and physicians, but philosophers might have a kind of professional interest in them too, since in a remarkably large number of them, judges have complained that the issues are too abstruse for the courts and belong more properly to philosophers and theologians. The issues that elicit this judicial frustration are those that require the (...) application to border-line cases of such philosophically interesting concepts as acting, causing, and the one that especially interests me, harming. I first became interested in the concept of harming in my work on the moral limits of the criminal law, where I had to come to terms with John Stuart Mill's famous “harm principle”–the principle that it is always a good reason in support of a criminal prohibition, indeed, the only legitimate reason, that it will prevent harm to persons other than the actor. I could not very well criticize that principle until I decided what the word “harm” must mean in its formulation. I gave what I took to be the requisite analysis of harm in my book Harm to Others. Here I wish to improve that analysis, examine its implications for civil as well as criminal liability, and test it on conceptually hard cases, especially cases of prenatal harming, that is, cases in which the wrongful causative conduct occurs before the victim's birth, and the harmed state that is its upshot consists in being born in an impaired condition. (shrink)

Book reviewed in this article: Life Before Birth: The Moral and Legal Status of Embryos and Fetuses. By Bonnie Steinbock.

The Human Genome Project will produce information permitting increasing opportunities to prevent genetically transmitted harms, most of which will be compatible with a life worth living, through avoiding conception or terminating a pregnancy. Failure to prevent these harms when it is possible for parents to do so without substantial burdens or costs to themselves or others are what J call “wrongful handicaps”. Derek Parfit has developed a systematic difficulty for any such cases being wrongs — when the harm could be (...) prevented only by preventing the existence of the individual who would have a worthwhile life even with the handicap, then bringing him into existence with the handicap does not make him worse off and so does not wrong him. I argue that a non “person‐affecting” principle requiring the avoidance of suffering and limited opportunity correctly accounts for cases of wrongful handicaps without requiring that the individuals with the handicap have been made worse off and therefore wronged. It is an advantage, not a difficulty, of this account that it does not imply that the person with the handicap has been wronged or is a victim with a special moral complaint. (shrink)

To what extent should parents be able to choose the kind of child they have? The unfortunate phrase 'designer baby' has become familiar in debates surrounding reproduction. As a reference to current possibilities the term is misleading, but the phrase may indicate a societal concern of some kind about control and choice in the course of reproduction. Typically, people can choose whether to have a child. They may also have an interest in choosing, to some extent, the conditions under which (...) they do so, such as whether they have a child with a serious disability or disease. The purpose of this book is to explore the difficult and controversial question of the appropriate ethical and legal extent of reproductive autonomy in this context. The book examines ethical, legal and public policy issues in prenatal screening, prenatal diagnosis (PND), selective abortion and preimplantation genetic diagnosis (PGD). It explores the ethics of these selection practices and the ability of current ethical guidelines and legal mechanisms, including the law on selective abortion and wrongful birth, to deal with advances in genetic and other knowledge in these areas. Unlike in the United States, in England the relevant law is not inherently rights-based, but the impact of the Human Rights Act 1998 inevitably raises questions about the proper scope of reproductive autonomy in this context. The implications of the analysis are considered for the development of relevant law, public policy and ethical guidelines and will be of interest to academics in medical law and ethics, health professionals, lawyers, those working on public policy and students with an interest in these issues. (shrink)