Pope Benedict XVI
Caritas in Veritate §10
Caritas in Veritate: On Integral Human Development in Charity and Truth
10 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 , 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.
Source: Caritas in Veritate (Vatican.va)