CSDC 55

The transformation of the world is a fundamental requirement of our time also. To this need the Church's social Magisterium intends to offer the responses called for by the signs of the times, pointing above all to the mutual love between human beings, in the sight of God, as the most powerful instrument of change, on the personal and social levels. Mutual love, in fact, sharing in the infinite love of God, is humanity's authentic purpose, both historical and transcendent. Therefore, “earthly progress must be carefully distinguished from the growth of Christ's kingdom. Nevertheless, to the extent that the former can contribute to the better ordering of human society, it is of vital concern to the kingdom of God”⁶⁷ Second Vatican Ecumenical Council, Pastoral Constitution Gaudium et Spes, 39: AAS 58AAS — Acta Apostolicae Sedis (official gazette of the Holy See)Volume 58 (1966) at vatican.va — scanned PDF (1966), 1057..