The phenomenon of twinning in early fetal development has become a popular source for doubt regarding the ascription of moral status to early embryos. In this paper, the possible moral basis for such a line of reasoning is critically analysed with sceptical results. Three different versions of the argument from twinning are considered, all of which are found to rest on confusions between the actual division of embryos involed in twinning and the property of early embryos to be divisible, be (...) based on highly questionable ethical assumptions, or to imply inconsistent claims regarding the moral importance of potentiality and/or the moral status of embryos. This is taken to expose a number of related inconsistencies in the moral basis of pro-life positions. In particular, ascribing moral significance to the property of being (in)divisible is found to be incompatible with the claim that human individuals possess unique values which could underpin an absolute moral ban on murder. (shrink)

Most philosophers writing about personal identity in recent years claim that what it takes for us to persist through time is a matter of psychology. In this groundbreaking new book, Eric Olson argues that such approaches face daunting problems, and he defends in their place a radically non-psychological account of personal identity. He defines human beings as biological organisms, and claims that no psychological relation is either sufficient or necessary for an organism to persist. Olson rejects several famous thought-experiments dealing (...) with personal identity. He argues, instead, that one could survive the destruction of all of one's psychological contents and capabilities as long as the human organism remains alive--as long as its vital functions, such as breathing, circulation, and metabolism, continue. (shrink)

_Moral Theory_ sets out the basic system used to solve moral problems, the system that consequentialists deride as 'traditional morality'. The central concepts, principles and distinctions of traditional morality are explained and defended: rights; justice; the good; virtue; the intention/foresight distinction; the acts/omissions distinction; and, centrally, the fundamental value of human life.

In a world of rapid technological advances, the moral issues raised by life and death choices in healthcare remain obscure. _Life and Death in Healthcare Ethics_ provides a concise, thoughtful and extremely accessible guide to these moral issues. Helen Watt examines, using real-life cases, the range of choices taken by healthcare professionals, patients and clients which lead to the shortening of life. The topics looked at include: * euthanasia and withdrawal of treatment * the persistent vegetative state * abortion * (...) IVF and cloning * life-saving treatment of pregnant women Clearly written and insightful, _Life and Death in Healthcare Ethics_ presupposes no prior knowledge of philosophy. It will be of interest to anyone confronting healthcare ethics for the first time, or seeking to develop his or her understanding of some core topics in the field. (shrink)

This study discusses the mind-body problem, arguing that the human person is best understood as an animal who is also spirit. Braine suggests that human beings should be described holistically, in the tradition of Aristotle and Thomas Aquinas. His final chapter explores a doctrine of immortality.