The archbishop also warned that there is still opposition within the Church to the encyclical

The Catholic Church’s teaching on marriage, abortion, human sexuality and contraception is rooted in the same respect for human dignity that guides its work for social justice and care for poor people, Philadelphia Archbishop Charles Chaput told a Catholic University of America audience.

It is imperative that the church make known why it upholds its teaching, as reiterated in Blessed Paul VI’s 1968 encyclical “Humanae Vitae” (“Of Human Life”), so that Catholics and the world understand God’s plan for humanity, the archbishop said during the April 4 opening session of a symposium marking the 50th anniversary of the papal teaching.

The encyclical is notably known for upholding church renouncement of contraception. It followed by eight years the 1960 U.S. Food and Drug Administration approval of the first birth control pill....

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