32 We have already mentioned activities which, although not conflicting with, are certainly outside the scope of Catholic Action, such as would be those of a political party or those which are purely economic and social. But there exist many other beneficent activities-such as the Leagues of Fathers of Families, for the defense of scholastic liberty and religious instruction, the union of citizens for the defense of the family and the sanctity of matrimony, and of public morality, which can be reorganized about the central nucleus of Catholic Action. In fact, it does not hold itself rigidly to fixed plans, but rather coordinates, as if about a radial center of light and heat, other initiatives and auxiliary institutions; which, enjoying always a just autonomy and a fitting liberty of action necessary for the accomplishment of their specific aims, feel the need of following the directions of its program.
Source: Firmissimam Constantiam (Vatican.va)