Quadragesimo Anno §44

⁴⁴ But to come down to particular points, We shall begin with ownership or the right of property. Venerable Brethren and Beloved Children, you know that Our Predecessor of happy memory strongly defended the right of property against the tenets of the Socialists of his time by showing that its abolition would result, not to the advantage of the working class, but to their extreme harm. Yet since there are some who calumniate the Supreme Pontiff, and the Church herself, as if she had taken and were still taking the part of the rich against the non-owning workers - certainly no accusation is more unjust than that - and since Catholics are at variance with one another concerning the true and exact mind of Leo, it has seemed best to vindicate this, that is, the Catholic teaching on this matter from calumnies and safeguard it from false interpretations.