Nature was corrupted by sin when Adam and Eve sinned against their Creator God by eating from the tree of knowledge of good and evil, I do not believe that the Greek philosophers read the Bible, and if they did read it they were fools not to realize that there was a Creator God
that didn't exist!! Of course it existed! at least the first testament, why do you think Christians were so persecuted at that time? for defending the bible! for believing it! for living it! and you tell me that it did not exist... the first part of the bible was written with the finger of god on the two tablets of Moses