Abortion is direct, when the expulsion of the fetus is desired as a means to any end (come, ad es., to save the life of the mother who is in danger due to pregnancy) or when it is intended as an end. Therefore there is always direct abortion, when the fetus is expelled or the pregnancy is terminated. (…) Direct abortion is a grave sin and an intrinsically evil act. Prove: a) It's a special murder case: therefore prohibited by the fifth precept; b) The tradition and doctrine of the Church condemn it; c) The fetus is a man, intellectual creature, distinct from the mother. He is therefore the subject of natural rights and therefore has the right to life. Who expels the fetus from the uterus, it deprives him of the necessary condition for life, like someone who closes a man's throat, making him unable to breathe. It is a violation of the right to life. It follows then that any direct abortion can never be justified.
One objects: a) Extreme necessity makes many things legitimate. We answer: Many, but not all. Se, ad es., something is prohibited by law, extraordinary circumstances can cause the right to cease just as extreme necessity causes the right to private property to cease, as it prevents another from saving himself from necessity. But there are some inalienable rights. Such is the right to life (of the innocent) that can never be lost. Human lives are not useful to everyone, like material goods, but each has life as a constituent part of their person;
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