This article tries to develop an antiessentialist theoretical framework for understanding the notion of modernity and its current changes from a nation-state institutionalization of modernity to a postnational one. It refers to Lyotard’s “Postmodern Condition ” and discusses three topics of Lyotard’s description of modernity: the social science repre-sentation of modernity, the paradox of social integration under mod-ern conditions, and the question of whether there is something like a normative foundation in the concept of modernity. It is argued that a theory of modernity has to be a theory of world society. On the one hand an antiessentialist approach to modernity and its postnational changes stresses both the necessity and impossibility...