In answer to Hannah

Hannah said, "We finally came to the conclusion that you can't have an evil without a good, while here, Augustine says you cannot be evil, unless there was some good to turn into evil."

We came to the conclusion in our previous discussion that evil was a lack of good, therefore good had to be there to start with. So I believe that contrary to what Hannah stated above (insinuating that we differed from St. Augustine's position), our conclusion does in fact agree with St. Augustine's.  We both believe that everything starts out as good but has the choice to take away that good, becoming evil.