Hitler, wrote Theodor Adorno, imposed "a new categorical imperative on humankind...to arrange thoughts and actions so that Auschwitz will not repeat itself." Interrupting Auschwitz argues that what gives this imperative its philosophical force and ethical urgency is the very impossibility of fulfilling it. But rather than being cause for despair, this failure offers a renewed conception of the tasks of thought and action. Precisely because the imperative...