Bernard Rollin historically and conceptually examines the ideology that denies the relevance of ethics to science. Providing an introduction to basic ethical concepts, he discusses a variety of ethical issues relevant to science and how they are ignored, to the detriment of both science and society. These issues include research on human subjects, animal research, genetic engineering, biotechnology, cloning, xenotransplantation, and stem cell research. Rollin also explores the ideological agnosticism that scientists have displayed regarding subjective experience in humans and animals, and its pernicious effect on pain management.