12 Such were the fundamental maxims which the Pontiff Gregory constantly proclaimed, and men listened to him. And thus, with Princes and peoples docile to his words, the world regained true salvation, and put itself on the path of a civilization which was noble and fruitful in blessings in proportion as it was founded on the incontrovertible dictates of reason and moral discipline, and derived its force from truth divinely revealed and from the maxims of the Gospel.
Source: Iucunda Sane (Vatican.va)