Longinqua §13

¹³ Another consideration claims our earnest attention. All intelligent men are agreed, and We Ourselves have with pleasure intimated it above, that America seems destined for greater things. Now, it is Our wish that the Catholic Church should not only share in, but help to bring about, this prospective greatness. We deem it right and proper that she should, by availing herself of the opportunities daily presented to her, keep equal step with the Republic in the march of improvement, at the same time striving to the utmost, by her virtue and her institutions, to aid in the rapid growth of the States. Now, she will attain both these objects the more easily and abundantly, in proportion to the degree in which the future shall find her constitution perfected. But what is the meaning of the legation of which we are speaking, or what is its ultimate aim except to bring it about that the constitution of the Church shall be strengthened, her discipline better fortified? Wherefore, We ardently desire that this truth should sink day by day more deeply into the minds of Catholics-namely, that they can in no better way safeguard their own individual interests and the common good than by yielding a hearty submission and obedience to the Church. Your faithful people, however, are scarcely in need of exhortation on this point; for they are accustomed to adhere to the institutions of Catholicity with willing souls and a constancy worthy of all praise.