The image of God always abides in the soul, whether this image be obsolete and clouded over as to amount to almost nothing; or whether it be obscured or disfigured, as is the case with sinners; or whether it be clear and beautiful as is the case with the just.
"Summa Theologica". Book by Thomas Aquinas, I, q. 93, art. 8, ad 3, 1265 - 1274.
