CSDC 150

The social nature of human beings does not automatically lead to communion among persons, to the gift of self. Because of pride and selfishness, man discovers in himself the seeds of asocial behaviour, impulses leading him to close himself within his own individuality and to dominate his neighbour²⁹⁹ Cf. Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 25: AAS 58AAS — Acta Apostolicae Sedis (official gazette of the Holy See)Volume 58 (1966) at vatican.va — scanned PDF (1966), 1045-1046.. Every society worthy of the name can be sure that it stands in the truth when all of its members, thanks to their ability to know what is good, are able to pursue it for themselves and for others. It is out of love for one's own good and for that of others that people come together in stable groups with the purpose of attaining a common good. The different human societies also must establish among themselves relationships of solidarity, communication and cooperation, in the service of man and the common good³⁰⁰ Cf. John Paul II, Encyclical Letter Sollicitudo Rei Socialis, 26: AAS 80AAS — Acta Apostolicae Sedis (official gazette of the Holy See)Volume 80 (1988) at vatican.va — scanned PDF (1988), 544-547; Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 76: AAS 58AAS — Acta Apostolicae Sedis (official gazette of the Holy See)Volume 58 (1966) at vatican.va — scanned PDF (1966), 1099-1100..