The Enchiridion 86
86 If They Have Ever Lived, They Must of Course Have Died, and Therefore Shall Have a Share in the Resurrection of the Dead PL 40, 272
And therefore the following question may be very carefully inquired into and discussed by learned men, though I do not know whether it is in man’s power to resolve it: At what time the infant begins to live in the womb: whether life exists in a latent form before it manifests itself in the motions of the living being. To deny that the young who are cut out limb by limb from the womb, lest if they were left there dead the mother should die too, have never been alive, seems too audacious. Now, from the time that a man begins to live, from that time it is possible for him to die. And if he die, wheresoever death may overtake him, I cannot discover on what principle he can be denied an interest in the resurrection of the dead.
Fetus in utero quando vivere incipiat. Ac per hoc scrupulosissime quidem inter doctissimos quaeri ac disputari potest, quod utrum ab homine inveniri possit ignoro, quando incipiat homo in utero vivere; utrum sit quaedam vita et occulta, quae nondum motibus viventis appareat. Nam negare vixisse puerperia, quae propterea membratim exsecantur et ejiciuntur ex uteris praegnantium, ne matres quoque si mortua ibi relinquantur occidant, impudentia nimia videtur. Ex quo autem incipit homo vivere, ex illo utique jam mori potest. Mortuus vero, ubicumque illi mors potuit evenire, quomodo ad resurrectionem non pertineat mortuorum, reperire non possum.