Pope Pius XI
Quadragesimo Anno §59
Quadragesimo Anno: On Reconstruction of the Social Order
59 The redemption of the non-owning workers - this is the goal that Our Predecessor declared must necessarily be sought. And the point is the more emphatically to be asserted and more insistently repeated because the commands of the Pontiff, salutary as they are, have not infrequently been consigned to oblivion either because they were deliberately suppressed by silence or thought impracticable although they both can and ought to be put into effect. And these commands have not lost their force and wisdom for our time because that "pauperism" which Leo XIII beheld in all its horror is less widespread. Certainly the condition of the workers has been improved and made more equitable especially in the more civilized and wealthy countries where the workers can no longer be considered universally overwhelmed with misery and lacking the necessities of life. But since manufacturing and industry have so rapidly pervaded and occupied countless regions, not only in the countries called new, but also in the realms of the Far East that have been civilized from antiquity, the number of the non-owning working poor has increased enormously and their groans cry to God from the earth. Added to them is the huge army of rural wage workers, pushed to the lowest level of existence and deprived of all hope of ever acquiring "some property in land," and, therefore, permanently bound to the status of non-owning worker unless suitable and effective remedies are applied.
Source: Quadragesimo Anno (Vatican.va)