judging other societies

we talked about differences between cultures and what if anything makes certain beliefs correct and others wrong. the example of stealing and lying came up and what would happen if there was a culture where those actions were accepted. what would i say to them because i believe that they are both wrong except for a few special cases? i would like to think that i would be able to accept all other cultures and respect their beliefs, but in the end i know i would try to convince them that they are wrong. its not just that they believe in something different than me but those beliefs clash with my own. i dont steal from others because i dont want them to do it to me. there is mutual respect for others and their property. if stealing was ok then everyone would do it and the society couldnt function because everything would be in disorder. so even though stealing is a very extreme example i do think there are some ideas that would not work in a society. people can impose their beliefs on another culture but i think it is very important how that is done. the manner in which you present your ideas can dictate the success of those ideas. people always act negatively if they feel that their way of life is threatened. this is just like in a classroom discussion. if you are trying to make a point, if you logically present your argument and are respectful, there is a much greater chance that it will be welcomed.