55 Those Catholics are worthy of all praise-and they are not a few-who, understanding what the times require, have striven, by various undertakings and endeavors, to better the condition of the working class by rightful means. They have taken up the cause of the working man, and have spared no efforts to better the condition both of families and individuals; to infuse a spirit of equity into the mutual relations of employers and employed; to keep before the eyes of both classes the precepts of duty and the laws of the Gospel - that Gospel which, by inculcating self restraint, keeps men within the bounds of moderation, and tends to establish harmony among the divergent interests and the various classes which compose the body politic. It is with such ends in view that we see men of eminence, meeting together for discussion, for the promotion of concerted action, and for practical work. Others, again, strive to unite working men of various grades into associations, help them with their advice and means, and enable them to obtain fitting and profitable employment. The bishops, on their part, bestow their ready good will and support; and with their approval and guidance many members of the clergy, both secular and regular, labor assiduously in behalf of the spiritual interest of the members of such associations. And there are not wanting Catholics blessed with affluence, who have, as it were, cast in their lot with the wage-earners, and who have spent large sums in founding and widely spreading benefit and insurance societies, by means of which the working man may without difficulty acquire through his labor not only many present advantages, but also the certainty of honorable support in days to come. How greatly such manifold and earnest activity has benefited the community at large is too well known to require Us to dwell upon it. We find therein grounds for most cheering hope in the future, provided always that the associations We have described continue to grow and spread, and are well and wisely administered. The State should watch over these societies of citizens banded together in accordance with their rights, but it should not thrust itself into their peculiar concerns and their organization, for things move and live by the spirit inspiring them, and may be killed by the rough grasp of a hand from without.
Source: Rerum Novarum (Vatican.va)