Biotechnologies already on the horizon will enable us to be smarter, have better memories, be stronger and quicker, have more stamina, live longer, be more resistant to diseases, and enjoy richer emotional lives. To some of us, these prospects are heartening; to others, they are dreadful. In Beyond Humanity a leading philosopher offers a powerful and controversial exploration of urgent ethical issues concerning human enhancement. These raise enduring questions about what it is to be human, about individuality, about our relationship to nature, and about what sort of society we should strive to have. Allen E. Buchanan urges that the debate about enhancement needs to be informed by a proper understanding of evolutionary biology, which has discredited the simplistic conceptions of human nature used by many opponents of enhancement. He argues that there are powerful reasons for us to embark on the enhancement enterprise, and no objections to enhancement that are sufficient to outweigh them.

This book is the most comprehensive treatment available of one of the most urgent - and yet in some respects most neglected - problems in bioethics: decision-making for incompetents. Part I develops a general theory for making treatment and care decisions for patients who are not competent to decide for themselves. It provides an in-depth analysis of competence, articulates and defends a coherent set of principles to specify suitable surrogate decisionmakers and to guide their choices, examines the value of advance directives, and investigates the role that considerations of cost ought to play in decisions concerning incompetents. Part II applies this theoretical framework to the distinctive problems of three important classes of individuals, many of whom are incompetent: minors, the elderly and psychiatric patients. The authors' approach combines a probing analysis of fundamental issues in ethical theory with a sensitive awareness of the concrete realities of health care institutions and the highly personal and individual character of difficult practical problems. Its broad scope will appeal to health professionals, moral philosophers and lawyers alike.

Biotechnologies already on the horizon will enable us to be smarter, have better memories, be stronger and quicker, have more stamina, live longer, be more resistant to diseases, and enjoy richer emotional lives. To some of us, these prospects are heartening; to others, they are dreadful. In Beyond Humanity a leading philosopher offers a powerful and controversial exploration of urgent ethical issues concerning human enhancement. These raise enduring questions about what it is to be human, about individuality, about our relationship to nature, and about what sort of society we should strive to have. Allen E. Buchanan urges that the debate about enhancement needs to be informed by a proper understanding of evolutionary biology, which has discredited the simplistic conceptions of human nature used by many opponents of enhancement. He argues that there are powerful reasons for us to embark on the enhancement enterprise, and no objections to enhancement that are sufficient to outweigh them.

This book is the most comprehensive treatment available of one of the most urgent--and yet in some respects most neglected--problems in bioethics: decisionmaking for incompetents. Part I develops a general theory for making treatment and care decisions for patients who are not competent to decide for themselves. It provides an in-depth analysis of competence, articulates and defends a coherent set of principles to specify suitable surrogate decisionmakers and to guide their choices, examines the value of advance directives, and investigates the role that considerations of cost ought to play in decisions concerning incompetents. Part II applies this theoretical framework to the distinctive problems of three important classes of individuals, many of whom are incompetent: minors, the elderly, and psychiatric patients. The authors' approach combines a probing analysis of fundamental issues in ethical theory with a sensitive awareness of the concrete realities of health care institutions and the highly personal and individual character of difficult practical problems. Its broad scope will appeal to health professionals, moral philosophers and lawyers alike.