3 In such a mighty storm and universal upheaval, from where did hope shine? Where did help and protection arise in order to save humanity and what was left of its treasures from shipwreck? It came from the Catholic Church. All earthly institutions begun and built solely on human wisdom and human power, in the course of time succeed one another, flourish and then quite naturally fail, weaken and crumble away; but the organization which Our Redeemer established has received from its divine Founder unfailing life and abiding strength from on high. Thus sustained and fortified the Church comes out victorious through the hostile fortunes of time and circumstances; amid their ruins and failures it is capable of molding a new and happier age and with Christian doctrine and spirit she can build and erect a new society of citizens, peoples and nations.
Source: Fulgens Radiatur (Vatican.va)