I think rights are something that are made into official rules because they're "built in" in our minds from the beginning.
I think everyone, ignoring the cultural / religious backgrounds, have certain things they know they need. A good rule IMO, is that don't do something to another person you wouldn't him to do to you.
I hate it when religious people mix religion with morals. They have nothing to do with each other in my book, killing someone is wrong, just because I think it's obvious not becuase my religion tells me so. I don't want to be killed, so I won't kill anyone else. </a bit beery late night post>
