8 We are the more easily persuaded of this, inasmuch as none can be ignorant, since it is known fully to you, what are Our desires and prayers in this matter. Moreover, while they are connected with the good of religion, they no less work for the solid prosperity of the Portuguese nation. For this gift, this possession, was granted to the Church by her Divine Founder, that she should be in the common society of men a bond of peace and the guardian of salvation. Wherefore the Church in no way weakens the power of those who rule the State, rather she supports and strengthens it, in conferring on the laws that spring from this power the sanction of religion, in reckoning among the obligations laid upon mankind by God a due reverence for authority, in warning citizens to refrain from sedition and all disturbance in the State, in teaching all to practise virtue, and conscientiously to fulfil the duties that belong to their condition in life. Therefore is the Church the pinnacle of morality, and by her salutary discipline she trains citizens to be upright, honourable, patriotic, faithful and very steadfast to duty, to be such men in fine as stand for an immovable foundation in the public ordering of the State, and as give to it an unconquerable strength for the achievement of every noble and high ideal. Therefore is it to the State's high advantage to leave to the Church that liberty of action which she demands of right, and to prepare a friendly path where she may be able to touch far lands with her beneficial powers, and to employ all the gifts of her endowment for the common good.
Source: Pastoralis Vigilantiae (Vatican.va)