Every human being, even a child in the mother's womb has a right to life directly from God and not from the parents or from any society or authority. Hence there is no man, no human authority, no science, no medical, eugenic, social, economic or moral 'indication' that can offer or produce a valid juridical title to a direct deliberate disposal of an innocent human life; that is to say, a disposal that aims at its destruction whether as an end or as a means to another end, which is, perhaps, in no way unlawful in itself.
--Pius XII, Allocution to Large Families, November 26, 1951