38 In the task of development man finds the family to be the first and most basic social structure; but he is often helped by professional organizations. While such organizations are founded to aid and assist their members, they bear a heavy responsibility for the task of education which they can and must carry out. In training and developing individual men, they do much to cultivate in them an awareness of the common good and of its demands upon all.
Source: Populorum Progressio (Vatican.va)