The teaching of the Catholic Church on the effects of original sin addresses both the free will of fallen man and the capacity of  both sinners and non believers to do good. The fact that fallen man--after the sin of Adam--possess free will is demonstrated from the Bible They answered him, "We are descendants of Abraham and have never been enslaved to anyone.  How can you say, 'You will become free'?“  Jesus answered them, "Amen, amen, I say to you, everyone who commits sin is a slave of sin.  A slave does not remain in a household forever, but a son  always remains.  So if