Focus: The peculiar persistence of the naturalistic fallacy

Although "naturalistic fallacy" is a term coined in the twentieth century, scholars have long voiced myriad anxieties over the mechanisms by which their contemporaries have derived moral, social, and political lessons from natural phenomena—often as gambits for advancing their own alternative explanations. The essays in this Focus section explore five episodes in the history of such concerns with naturalistic reasoning in order to shed new light on the persistence of naturalism itself.