“The transmission of human life is a most serious role in which married people collaborate freely and responsibly with God the Creator. It has always been a source of great joy to them, even though it sometimes entails many difficulties and hardships.
“The fulfillment of this duty has always posed problems to the conscience of married people, but the recent course of human society and the concomitant changes have provoked new questions. The Church cannot ignore these questions, for they concern matters intimately connected with the life and happiness of human beings.
“But the most remarkable development of all is to be seen in man’s stupendous progress in the domination and rational organization of the forces of nature to the point that he is endeavoring to extend this control over every aspect of his own life—over his body, over his mind and emotions, over his social life, and even over the laws that regulate the transmission of life.“
Humanae Vitae, 1968 (emphasis added)
“The autonomous will really has no choice but to attack the body as well as the mind. For the body is the most obvious locus of the given, the most stubborn impediment to the power claimed by the will. “
-Douglas Farrow, Theological Negotiations, 2018