From Pope Benedict XVI’s encyclical Caritas in Veritate (2009):
Love in truth — caritas in veritate — is a great challenge for the Church in a world that is becoming progressively and pervasively globalized. The risk for our time is that the de facto interdependence of people and nations is not matched by ethical interaction of consciences and minds that would give rise to truly human development. Only in charity, illumined by the light of reason and faith, is it possible to pursue development goals that possess a more humane and humanizing value. The sharing of goods and resources, from which authentic development proceeds, is not guaranteed by merely technical progress and relationships of utility, but by the potential of love that overcomes evil with good (cf. Rom 12:21), opening up the path towards reciprocity of consciences and liberties.
The Church does not have technical solutions to offer10 and does not claim “to interfere in any way in the politics of States.”11 * She does, however, have a mission of truth to accomplish, in every time and circumstance, for a society that is attuned to man, to his dignity, to his vocation. Without truth, it is easy to fall into an empiricist and sceptical view of life, incapable of rising to the level of praxis because of a lack of interest in grasping the values — sometimes even the meanings — with which to judge and direct it. Fidelity to man requires fidelity to the truth, which alone is the guarantee of freedom (cf. Jn 8:32) and of the possibility of integral human development. For this reason the Church searches for truth, proclaims it tirelessly and recognizes it wherever it is manifested. This mission of truth is something that the Church can never renounce. Her social doctrine is a particular dimension of this proclamation: it is a service to the truth which sets us free. Open to the truth, from whichever branch of knowledge it comes, the Church’s social doctrine receives it, assembles into a unity the fragments in which it is often found, and mediates it within the constantly changing life-patterns of the society of peoples and nations.12
A fresh reading of Populorum Progressio, more than forty years after its publication, invites us to remain faithful to its message of charity and truth, viewed within the overall context of Paul VI’s specific magisterium and, more generally, within the tradition of the Church’s social doctrine. Moreover, an evaluation is needed of the different terms in which the problem of development is presented today, as compared with forty years ago. The correct viewpoint, then, is that of the Tradition of the apostolic faith,13 a patrimony both ancient and new, outside of which Populorum Progressio would be a document without roots — and issues concerning development would be reduced to merely sociological data.
10 Cf. Second Vatican Ecumenical Council, Pastoral Constitution on the Church in the Modern World Gaudium et Spes, 36; Paul VI, Apostolic Letter Octogesima Adveniens (14 May 1971), 4: Acta Apostolicæ Sedis [AAS] 63 (1971), 403-404; John Paul II, Encyclical Letter Centesimus Annus (1 May 1991), 43: AAS 83 (1991), 847.
11 Paul VI, Encyclical Letter Populorum Progressio, 13: AAS 59 (1967), 263-264.
12 Cf. Pontifical Council for Justice and Peace, Compendium of the Social Doctrine of the Church, 76.
13 Cf. Benedict XVI, Address at the Inauguration of the Fifth General Conference of the Bishops of Latin America and the Caribbean (Aparecida, 13 May 2007).
— Caritas in Veritate 9-10
* Recent events surrounding the Sovereign Military Order of Malta notwithstanding. — Ed.