Introduction : philosophical reflections on disability / D. Christopher Ralston and Justin Ho -- An essay on modeling : the social model of disability / Anita Silvers -- Ability, competence and qualification : fundamental concepts in the philosophy of disability / Lennart Nordenfelt -- Disability and medical theory / Christopher Boorse -- Utilitarianism, disability, and society / Torbjörn Tännsjö -- Too late to matter? Preventing the birth of infants at risk for adult-onset disease or disability / Laura M. Purdy -- To fail to enhance is to disable / Muireann Quigley and John Harris -- Rehabilitating Aristotle : a virtue ethics approach to disability and human flourishing / Garret Merriam -- Equal treatment for disabled persons : the case of organ transplantation / Robert M. Veatch -- Disability rights : do we really mean it? / Ron Amundson -- Dignity, disability, difference, and rights / Daniel P. Sulmasy -- Public policy and personal aspects of disability / Patricia M. Owens and Eric J. Cassell -- Disability and social justice / Christopher Tollefson -- The unfair and the unfortunate : some brief critical reflections on secular moral claim rights for the disabled / H. Tristram Engelhardt, Jr. -- Neither victims nor heroes : reflections from a polio person / Jean Bethke Elshtain.