15. Two further documents by Paul VI without any direct link to social doctrine — the Encyclical Humanae Vitae (25 July 1968) and the Apostolic Exhortation Evangelii Nuntiandi (8 December 1975) — are highly important for delineating the fully human meaning of the development that the Church proposes. It is therefore helpful to consider these texts too in relation to Populorum Progressio.

The Encyclical Humanae Vitae emphasizes both the unitive and the procreative meaning of sexuality, … [More]