Table of contents

1. The context - 2. The ecclesiasticist's interest - 3. The plane of constitutional legality: Article 20 Const. and its role in the reconstruction of the legal principle of secularism. Preliminary remarks - 4. Article 20 Const. in its original minimum content - 5. The further content - 6. The consequences of the constitutional formalization of the principle of subsidiarity - 7. The plane of subconstitutional and ordinary legality: some significant exemplifications - 8. Promotion as economic-financial support: differential access to the Onlus discipline - 9. The social enterprise, the ambiguous functional connotation of the "eight per thousand" system and the "five per thousand" - 10. Promotion as institutional collaboration and the objective limit of subsidiarity - 11. The problematic detection of the public interest in the case of ecclesiastical cultural goods and of religious interest - 12. The actors of pluralism within the integrated systems of interventions and social services - 13. Recapitulating. The supreme principle of secularism and the dynamics of subsidiarity in the multicultural and multireligious context: the possible encounter, the impermissible deviations