The Nature Boy said:
how can you prove that? what's right to me could be wrong to you. people have disagreed on what is right since the beginning of time.
it's not that hard, think about it. if murder took no more thought than you getting dressed in the morning, then most of us wouldn't be here. that holds true throughout EVERY society. if rape was as easy as eating, most of us would be raping women all the time. but we don't. why? because it is morally unacceptable THROUGHOUT every society. so you see, we aren't all that different. people like to claim that every society has all these different ideas and morals, but every society has the same basic moral principles that allow us to function as societies. its just the trivial stuff that is different.