12 It is also important to define clearly the works which the Catholic forces must energetically and constantly undertake. These works must be of such evident importance that they will be appreciated by everybody. They must bear such a relation to the needs of modern society and be so well adapted to moral and material interests, especially those of the people and the poorer classes, that, while arousing in promoters of Catholic Action the greatest activity for obtaining the important and certain results which are to be looked for, they may also be readily understood and gladly welcomed by all. Since the serious problems of modern social life demand a prompt and definite solution, everyone is anxious to know and understand the different ways in which these solutions can be put into practice. Discussions of one kind or another are more and more numerous and rapidly published by the press. It is, therefore, of the greatest importance that Catholic Action seize the present moment and courageously propose its own solution, strengthening it by means of solid propaganda which at the same time will be active, intelligent, disciplined and organized against all erroneous doctrine. The goodness and justice of Christian principles, the true morality which Catholics profess, their evident unconcern for their own welfare while wishing nothing but the supreme good of others, and their open and sincere ability to foster better than all others the true economic interests of the people - these qualities cannot fail to make an impression on the minds and hearts of all who hear them, and to swell their ranks so as to form a strong and compact corps, capable of boldly resisting the opposing current and of commanding the respect of their enemies.
Source: Il Fermo Proposito (Vatican.va)