I recognize that my moral claim to act in accordance with the dictates of my own will, is predicated upon my willingness to respect the same ability in others. Hence I recognize the initiation of force or fraud as immoral under all circumstances.
What reason do you have not to go out and kill some little girl?
If the only reason you don't kill little girls is because God says it is against his rules and he'll punish you... I'd suggest that your moral sense is shallow indeed.