Graves de Communi Re §5

⁵ What Social Democracy is and what Christian Democracy ought to be, assuredly no one can doubt. The first, with due consideration to the greater or less intemperance of its utterance, is carried to such an excess by many as to maintain that there is really nothing existing above the natural order of things, and that the acquirement and enjoyment of corporal and external goods constitute man's happiness. It aims at putting all government in the hands of the masses, reducing all ranks to the same level, abolishing all distinction of class, and finally introducing community of goods. Hence, the right to own private property is to be abrogated, and whatever property a man possesses, or whatever means of livelihood he has, is to be common to all.