[ScottSolomon]

I think the basis for the struggle between good and evil is the struggle between rational thought, societal pressure, and animalistic desire.

Society requires us to conform to a social contract that is often in conflict with our personal desires for money, food, power, a mate, etc. Our animalistic desires are the main drivers in our lives. our raitonal mind is the arbiter of empathy and attempts to control the animalistic urges. Society provides the framework from which our rational mind derives it's rules for governing personal desire.

i do not believe - like Freud that these different aspects of self are polar opposites, but I think he was right about the gist of the strucure of human thought.

In this sense, yes we are born with original sin. We learn the societla constructs later.