62 We have now laid before you, venerable brethren, both who are the persons and what are the means whereby this most arduous question must be solved. Every one should put his hand to the work which falls to his share, and that at once and straightway, lest the evil which is already so great become through delay absolutely beyond remedy. Those who rule the commonwealths should avail themselves of the laws and institutions of the country; masters and wealthy owners must be mindful of their duty; the working class, whose interests are at stake, should make every lawful and proper effort; and since religion alone, as We said at the beginning, can avail to destroy the evil at its root, all men should rest persuaded that main thing needful is to re-establish Christian morals, apart from which all the plans and devices of the wisest will prove of little avail.
Source: Rerum Novarum (Vatican.va)