I thought propogating the species, which would include trying to better conditions for future generations and humanity in general, would be a good purpose. Whats the point of life for a christian? Worship god, obey gods laws then just wait for death so you can ascend to heaven? Sounds a bit nihilistic to me. The wiki has more references and is more objective. Slavery = welfare. Those POWs are so lucky. If you are regulating it you are condoning it. Condone = approve or sanction, especially with reluctance. Yes morals are defined by society. Its hard to follow your hypothetical given i cannot make an objective judgment. I would not find rape and murder okay under any circumstances because of the morals instilled in me. Most modern societies condemn rape theft and murder, the 3 biggies. Probably because they are the antithesis of living in a communal society. But beyond that morals differ and can change over time. Once upon a time slavery was fine. Homosexuality was not. Its funny you keep bringing up rape when those bible passages clearly suggest taking non consenting females as wives was fine back then.