Heather E. Keith is Associate Professor of Philosophy at Green Mountain College, Vermont. Her work has appeared in such publications as The Transactions of the Charles S. Peirce Society, The Journal of Chinese Philosophy, Streams of William James, and the Encyclopedia of American Philosophy.Kenneth D. Keith is Professor Emeritus of Psychological Sciences at the University of San Diego. The author, co-author, or editor of more than 100 scientific and professional publications including The Wiley-Blackwell Encyclopedia of Cross-Cultural Psychology, Keith is also a Fellow of the American Psychological Association in the divisions on teaching and on international psychology, and a Fellow of the Western Psychological Association and the Association for Psychological Science.

“The best use of this valuable contribution may be to disseminate it to the decision makers, legislators, and health care providers and, most importantly, to the educators and trainers who can extract the gems from this treasure chest to increase the wealth of knowledge and improve the awareness of direct workers, families, medical/behavioral health students, and community members about people with intellectual disabilities.  In addition, this book could be used to correct a significant concern regarding the professionals who provide services to this population.”  (PsycCRITIQUES, 28 April 2014)“This well-thought-out reference is grounded in thorough research with an engaging narrative.  Summing Up: Highly recommended.  Lower-level undergraduates and above; general readers.”  (Choice, 1 March 2014)"It is entirely refreshing to read about intellectual disability from a philosophical and social perspective. I would recommend this book to anyone with an interest in intellectual disability (be it clinical, academic or personal). It is a useful piece of literature that will aid anyone involved in this field to more readily appreciate the social, moral and historical context of intellectual disability, while providing a useful framework to consider for the future." The International Journal of Developmental Disabilities

• Acknowledgements vii Prologue:Why Study Disability? ixPart I The Roots of Dehumanization 11 Intellectual Disability: History and Evolution of Definitions 32 The Social Construction of Purgatory: Ideas and Institutions 193 A Failure of Intelligence 374 The Consequences of Reason: Moral Philosophy and Intelligence 53Part II Out of the Darkness 775 Defining the Person: The Moral and Social Consequences of Philosophies of Selfhood 796 Alternative Views of Moral Engagement: Relationality and Rationality 957 Culture and Intellectual Disability 116Part III Disability Ethics for a New Age 1318 Quality of Life and Perception of Self 1339 Application and Best Practices: Rights, Education, and Ethics 15110 Epilogue: Visions of the Future 170References 177Name Index 215Subject Index 225