In this thoughtful text, Brian Kane explores the foundations, methods, and conclusions of Catholic thinking on bioethics. With the advent of medical technologies and treatments that once seemed impossible, scientific knowledge brings with it opportunities to enhance, damage, or even destroy our humanity. Catholic theology has a long tradition of exploring this relationship between science and the human person. By providing an introductory explanation of Catholic theological thinking on bioethics, Kane offers a systematic approach to questions on the meaning of human existence and the power of human choice. He explains the ways Catholic readers can better understand ethical dilemmas and decisions regarding medicine and health care--both individually and collectively as members of society.