This volume contains the Proceedings of a three-year NEH-sponsored seminar on bioethics, held at the University of Puerto Rico during the summers of 1998-2000. This is one of the finest collections of interdisciplinary studies covering the areas of philosophy, history, theology, literature, and the behavioral sciences. A distinguished international panel of scholars, including Edmund Pellegrino, Diego Gracia Guillén, Javier Gafo, Samuel Banks, and Joanne Trautman, among others, present their penetrating research in a lucid and engaging style.