From Leo XIII’s encyclical Quod Apostolici muneris, of December 28, 1878:
Marble statue of Pope Leo XIII in 1891 in the Collegiate Church of the birthplace of Pope Pecci
For, indeed, although the socialists, stealing the very Gospel itself with a view to deceive more easily the unwary, have been accustomed to distort it so as to suit their own purposes, nevertheless so great is the difference between their depraved teachings and the most pure doctrine of Christ that none greater could exist: “for what participation hath justice with injustice? Or what fellowship hath light with darkness?” (2 Cor. 6:14). Their habit, as we have intimated, is always to maintain that nature has made all men equal, and that, therefore, neither honor nor respect is due to majesty, nor obedience to laws, unless, perhaps, to those sanctioned by their own good pleasure. But, on the contrary, in accordance with the teachings of the Gospel, the equality of men consist in this: that all, having inherited the same nature, are called to the same most high dignity of the sons of God, and that, as one and the same end is set before all, each one is to be judged by the same law and will receive punishment or reward according to his deserts. The inequality of rights and of power proceeds from the very Author of nature, “from whom all paternity in heaven and earth is named.” (Eph. 3:15). (Catholic World, Vol. 27 [March 1879], p. 853.)
Plinio Corrêa de Oliveira, Nobility and Analogous Traditional Elites in the Allocutions of Pius XII: A Theme Illuminating American Social History (York, Penn.: The American Society for the Defense of Tradition, Family, and Property, 1993), Documents V, p. 477.
