people believe that if god doesn't exist then why should a person bothers to be a good one. Why can't they understand that morality is inborn. A person dont need an old book to tell him what is good or bad for him or who should he love and respect.
Eskimo: "If I did not know about God and sin, would I go to hell?" Priest: "No, not if you did not know." Eskimo: "Then why did you tell me?"