Ingmar Persson is Professor of Practical Philosophy at the University of Gothenburg, and Research Fellow at the Oxford Uehiro Centre for Practical Ethics, University of Oxford. Julian Savulescu is Uehiro Chair in Practical Ethics, Director of the Oxford Uehiro Centre for Practical Ethics, and Director of the Program on Ethics and the New Biosciences in the 21st Century School, University of Oxford.

Persson and Savulescu's insights into human behavior demonstrate a novel way of describing the effects of sin that is rarely, if at all, found among Thomistic theologians.

• 1. Introduction ; 2. Human Nature and Common Sense Morality ; 3. Liberal Democracy ; 4. Catastrophic Misuses of Science ; 5. Responsibility for Omissions to Aid ; 6. The Tragedy of the Commons ; 7. The Tragedy of the Environment and Liberal Democracy ; 8. Authoritarianism and Democracy ; 9. Liberal Democracy and the End of History ; 10. Moral Enhancement as a Possible Way-Out ; Index

Ingmar Persson is Professor of Practical Philosophy at the University of Gothenburg, and Research Fellow at the Oxford Uehiro Centre for Practical Ethics, University of Oxford. Julian Savulescu is Uehiro Chair in Practical Ethics, Director of the Oxford Uehiro Centre for Practical Ethics, and Director of the Program on Ethics and the New Biosciences in the 21st Century School, University of Oxford.

Persson and Savulescu's insights into human behavior demonstrate a novel way of describing the effects of sin that is rarely, if at all, found among Thomistic theologians.

• 1. Introduction ; 2. Human Nature and Common Sense Morality ; 3. Liberal Democracy ; 4. Catastrophic Misuses of Science ; 5. Responsibility for Omissions to Aid ; 6. The Tragedy of the Commons ; 7. The Tragedy of the Environment and Liberal Democracy ; 8. Authoritarianism and Democracy ; 9. Liberal Democracy and the End of History ; 10. Moral Enhancement as a Possible Way-Out ; Index

Ingmar Persson is Professor of Practical Philosophy at the University of Gothenburg, and Research Fellow at the Oxford Uehiro Centre for Practical Ethics, University of Oxford. Julian Savulescu is Uehiro Chair in Practical Ethics, Director of the Oxford Uehiro Centre for Practical Ethics, and Director of the Program on Ethics and the New Biosciences in the 21st Century School, University of Oxford.

Persson and Savulescu's insights into human behavior demonstrate a novel way of describing the effects of sin that is rarely, if at all, found among Thomistic theologians.

• 1. Introduction ; 2. Human Nature and Common Sense Morality ; 3. Liberal Democracy ; 4. Catastrophic Misuses of Science ; 5. Responsibility for Omissions to Aid ; 6. The Tragedy of the Commons ; 7. The Tragedy of the Environment and Liberal Democracy ; 8. Authoritarianism and Democracy ; 9. Liberal Democracy and the End of History ; 10. Moral Enhancement as a Possible Way-Out ; Index