25. For this reason the Roman Pontiffs are to be regarded as having greatly served the public good, for they have ever endeavored to break the turbulent and restless spirit of innovators, and have often warned men of the danger they are to civil society. In this respect we may worthily recall to mind the declaration of Clement VII to Ferdinand, King of Bohemia and Hungary: "In the cause of faith your own dignity and advantage and that of other rulers is included, since the faith cannot be shaken without your authority being brought down; which has been most clearly shown in several instances." In the same way the supreme forethought and courage of Our predecessors have been shown, especially of Clement XI, Benedict XIV, and Leo XII,³¹ who, when in their day the evil of vicious doctrine was more widely spreading and the boldness of the sects was becoming greater, endeavored by their authority to close the door against them. And We Ourselves have several times declared what great dangers are impending, and have pointed out the best ways of warding them off. To princes and other rulers of the State we have offered the protection of religion, and we have exhorted the people to make abundant use of the great benefits which the Church supplies. Our present object is to make rulers understand that this protection, which is stronger than any, is again offered to them; and We earnestly exhort them in our Lord to defend religion, and to consult the interest of their Lord to defend religion, and to consult the interest of their States by giving that liberty to the Church which cannot be taken away without injury and ruin to the commonwealth.