Abstract

Starting from the contemporary processes of “fragmentation of societies” (pluralization of individual lifestyles, the increasing ethnic‐cultural diversity, de‐solidarity, the melting away of political loyalties) and of “dissolution of the nation” (the erosion of the monopoly of the state, economic globalization), the author examines Tocqueville's question about what holds society together. This problem of integration is analysed in the perspective of social and legal sciences. Accordingly, the author stresses that solutions to such a problem should come from a constitutional theory which is open to debates and answers developing in other disciplines, thus obtaining relevant information concerning the role of law and of constitution for integration.