This paper presents a way of building social cohesion open to diversity, assuming that democracy is alive only when it is reinvented. It challenges social trust to welcome diversity, thus allowing for a continual reinvention of democratic cohesion. Articulating cultural diversity and trust represents a major challenge for democratic coexistence. Philosophy is called to take into account the existing models of social cohesion and trust, and to reinvent democracy by defining a new paradigm of trust integrating social and cultural diversity.