"In hindsight, it is possible to see the opportunity that Rock missed. If he had known what we know now and had talked about the Pill not as a contraceptive but as a cancer drug—not as a drug to prevent life but as one that would save life—the church might well have said yes. Hadn’t Pius XII already approved the Pill for therapeutic purposes?"
January 1, 1970
https://en.wikiquote.org/wiki/Christian_views_on_birth_control