Techniques that entail the dissociation of husband and wife, by the intrusion of a perSon other than the couple (donation of sperm or ovum, surrogate uterus), are Gravely immoral. These techniques (heterologous artificial insemination and fertilization) infringe the child's right to be born of a Father and mother known to him and Bound to each other by Marriage. They betray the Spouses' "right to become a father and a mother only through each other." 166