Necessary over there, and everywhere

If Christianity is necessary to Europe, the Catholic Church is no less necessary to Christianity, for without it the latter would become no more than a mass of divergent opinions dissolving under the pressure of rationalist criticism and secularist culture. It was by virtue of the Catholic ideal of spiritual unity that the social unity of European culture emerged from the welter of barbarism, and the modern world stands no less in need of such an ideal if it is to realize in the future the wider unity of a world civilization.