Can societies fall ill? Can institutions die, or social practices degenerate? Must social norms be embodied? To what extent is social action habitual? Is social life part of nature or does it transcend it? This book explores the meaning and many facets of naturalism in social philosophy. It investigates the consequences of concepts such as 'second nature' and 'forms of life' for social philosophy. It analyses the ways in which social action, gender, work and morality are embodied. It surveys the conceptions of nature at play in social criticism. It provides students and experts of social philosophy with both an overview and critical analyses of the many facets of naturalism in social philosophy from Hegel to contemporary critical theory. Contributors: Louis Carré, Fabian Freyenhagen, Martin Hartmann, Axel Honneth, Thomas Khurana, Steven Levine, Sabina Lovibond, Arvi Särkelä, Barbara Stiegler, Mariana Teixeira, Italo Testa