Pope Benedict XVI, Deus Caritas Est, God is Love, December 25, 2005

Blessed John Paul II,  Evangelium Vitae, The Gospel of Life March 25, 1995

Blessed John Paul II, Address to the Eighteenth International Congress of the Transplantation Society August 29, 2000

Blessed John Paul II,  Address to Participants in the International Congress on Life-Sustaining Treatments and the Vegetative State: Scientific Advances and Ethical Dilemmas March 20 2004

Blessed John Paul II, Familiaris Consortio. The Christian Family in the Modern World November 22, 1981

Blessed John Paul II, Fides et Ratio, Faith and Reason, September 14, 1998

Blessed John Paul II,  Mulieris Dignitatem, On the Dignity and Vocation of Women, August 15, 1988

Blessed John Paul II, Salvifici Doloris, The Christian Meaning of Human Suffering. February 11, 1984

Blessed John Paul II, Theology of the Body, 1979 – 1984

Blessed John Paul II, Veritatis Splendor, The Splendor of Truth, August 6, 1993

Catechism of the Catholic Church,2nd ed. Vatican City 1997

Pope Paul VI, Humanae Vitae, Of Human Life July 25, 1968

Pope Pius XII, The Prolongation of Life, Address to an International Congress of Anesthesiologists, November 24, 1957

Pope Pius XI, Casti Connubii, On Christian Marriage December 31, 1930