1991 0-88946-722-6 Investigates the idea of interest and the role it is made to perform in social theory. Elaborates the concept of interest in order to come to grips with the dual character of social reality, which is at the same time objective and subjective. Includes chapters on Weber, Habermas, Marx, and discussions of the normative regulation of interests, utilitarianism and hedonism, interests and human nature, and means and ends.