By bringing together authors who are already involved in the discussion, but come from different disciplinary backgrounds, the present work has a twofold objective: on the one hand, to identify, through the analysis of the diversity of national experiences, the components of the European constitutional heritage by examining the mechanisms by which the “common” is created, whether it is constructed from below, by means of comparative legal work, or from above, through the creation of common standards by European institutions that will apply on a pan-European scale. On the other hand, to reflect on future projections and prospects in the light of a Europe torn by successive crises, by examining the responsibility of European institutions for the development of a European heritage consciousness.