Libertas §12

¹² These precepts of the truest and highest teaching, made known to us by the light of reason itself, the Church, instructed by the example and doctrine of her divine Author, has ever propagated and asserted; for she has ever made them the measure of her office and of her teaching to the Christian nations. As to morals, the laws of the Gospel not only immeasurably surpass the wisdom of the heathen, but are an invitation and an introduction to a state of holiness unknown to the ancients; and, bringing man nearer to God, they make him at once the possessor of a more perfect liberty. Thus, the powerful influence of the Church has ever been manifested in the custody and protection of the civil and political liberty of the people. The enumeration of its merits in this respect does not belong to our present purpose. It is sufficient to recall the fact that slavery, that old reproach of the heathen nations, was mainly abolished by the beneficent efforts of the Church. The impartiality of law and the true brotherhood of man were first asserted by Jesus Christ; and His apostles re-echoed His voice when they declared that in future there was to be neither Jew, nor Gentile, nor barbarian, nor Scythian, but all were brothers in Christ. So powerful, so conspicuous, in this respect is the influence of the Church that experience abundantly testifies how savage customs are no longer possible in any land where she has once set her foot; but that gentleness speedily takes the place of cruelty, and the light of truth quickly dispels the darkness of barbarism. Nor has the Church been less lavish in the benefits she has conferred on civilized nations in every age, either by resisting the tyranny of the wicked, or by protecting the innocent and helpless from injury, or, finally, by using her influence in the support of any form of government which commended itself to the citizens at home, because of its justice, or was feared by their enemies without, because of its power.