"...It is the concept of original sin that negates morality. If man is guilty by nature, he has no choice about it. If he has no choice, the issue does not belong in the field of morality. Morality pertains only to the sphere of man’s free will – only to those actions, which are open to his choice. To consider man guilty by nature is a contradiction in terms. "
Ayn Rand, from Playboy Interview: Ayn Rand | Playboy