The Simple Case of in Vitro Fertilization and Embryo Transfer

Sacred Congregation for the Doctrine of the Faith, Instruction on Respect for Human Life in Its Origin and on the Dignity of Procreation: Replies to Certain Questions of the Day (Braintree, MA.: Pope John XXIII Medical Moral Research and Education Center, 1987), II, B, 4 (p. 16). The internal citation is from Pope Paul VI's Humanae Vitae, n. 12.

Sacred Congregation for the Doctrine of the Faith; the internal citation is from Pope Pius XII, “Discourse to those taking part in the Second Naples World Congress on Fertility and Human Sexuality.” 19 May 1956; AAS 48 (196)470.

Sacred Congregation for the Doctrine of the Faith, II, B, 4 (p. 16).

Sacred Congregation for the Doctrine of the Faith, II, B, 5 (p. 17).

Sacred Congregation for the Doctrine of the Faith, II, B, 5 (p. 18).

For a fuller discussion of this matter, see Ronald Lawler O.F.M. Cap. , Boyle Joseph M. Jr. and May William E. , Catholic Sexual Ethics: A Summary. Explantion, and Defense (Huntington, IN.: Our Sunday Visitor Press, 1985), pp. 176-209.

Here see Augustine St. , De genesi ad literam, 9.7; PL 34: 397.

Here see Gaudium el Spes, n. 48.

Here see Gaudium et Spes, nn. 50, 51; Pope Paul VI, Humanae Vitae, n. 9.

On this see Humanae Vitae, n. 9; cf. Lawler Boyle , and May , op. cit. pp. 172–173.

A full discussion of this is given by Lawler Boyle , and May , op. cit. pp. 151–167.

Classic sources for the difference between transitive and immanent activity and the significance of this difference are: Aristotle. Metaphysics Bk. 9, c. 8, 1050a23-1050bl; Thomas Aquinas St. , In IX Metaphysicorum, Lect. 8, n. 1865; Summa Theologiae, 1.4, 2, ad 2; 1, 14, 5, ad 1; 1, 18, 1.

Catholic Bishops’ Committee on Bio-Ethical Issues, In Vitro Fetrilization: Morality and Public Policy (London: Catholic Information Services, 1983), n. 23.

Catholic Bishops’ Committee on Bio-Ethical Issues, In Vitro Fetrilization: Morality and Public Policy (London: Catholic Information Services, 1983), n. 24.