- The Heart of Altruism
- Fundamentals of the Stem Cell Debate: The Scientific, Religious, Ethical, and Political Issues
- The Economic Approach to Politics: A Critical Reassessment of the Theory of Rational Action (HarperCollins Series in Comparative Politics)
- The Hand of Compassion: Portraits of Moral Choice during the Holocaust
- A Darkling Plain: Stories of Conflict and Humanity During War