Whatever is born is the work of God. So whatever is plastered on, is the devil's work.... How unworthy of the Christian name it is to wear a fictitious face - you on whom simplicity in every form is enjoined! You, to whom lying with the tongue is not lawful, are lying in appearance.
TertullianIn our case, murder being once for all forbidden, we may not destroy even the foetus in the womb, while as yet the human being derives blood from other parts of the body for its sustenance. To hinder a birth is merely a speedier mankilling; nor does it matter whether you take away a life that is born, or destroy one that is coming to the birth. That is a man which is going to be one; you have the fruit already in the seed.
Tertullian