Another, more anecdotal story about Saint Thomas Aquinas being in error during his lifetime involves his teaching about when “ensoulment” occurred in a newly conceived fetus. He didn’t believe it occurred until the “quickening” when the baby first kicked, thus demonstrating its
animation by an immortal soul.
Saint Aquinas, as a consequence, still argued that abortion was an intrinsic evil, but because it concealed sexual sin, instead of it killing a life. Here, Saint Aquinas was in error, albeit a qualified one that tried to reconcile the church’s constant teaching of the evils of abortion with his theory of
ensoulment. Incidently, the moment of
ensoulment remains undefined, although the teaching that abortion is evil because specifically because it kills is fairly well established now.
What moves me though, is the story of an Orthodox Christian abortionist in Yugoslavia, a man who killed several thousand unborn children. He started having dreams where a man was standing in a field watching over hundreds of children playing. The abortionist, who had never heard of Aquinas, or at least the details his theory of
ensoulment, learned the name of the man to be Saint Thomas. The children were the souls of the lives taken by the abortionist’s knife.
In the dream, Saint Thomas repented his theory of ensoulment, having learned the truth in Heaven. The abortionist soon after abandoned his practice and returned to the Orthodox faith.
andrewcusack.com/2008/11/16/adasevic/