“Reasons of Conscience is a dazzling study of the intersection of science, political life, and historical memory in modern Germany. It traces the public debate surrounding the legal, moral, and ethical ramifications of stem cell research in a country acutely sensitized to avoiding the repetition of the industrialization and eugenic manipulation of life in its past. Stefan Sperling explores in stunning ethnographic detail how German political life interweaves matters of ethics, citizenship, and conscience, from the everyday practices and knowledge of ethics commissions, scientific research, and citizen conferences, to the complexities of public and parliamentary debate. Without a doubt, this is the finest ethnography of German political life and of the inner workings of the German state that I have read—it is brilliantly attentive both to the cultural and historical legacies that shape German politics as well as to the Realpolitik and complex alliances of its parliamentary statecraft.”