Help with a Catholic

[Hurny]

"Is it objectively wrong to kill and innocent person?

There were plenty of ancient societies which practiced child sacrifice without a concern about it. Much like the bozo you are talking to they thought they were placating their god, too.

I wonder if anyone can identify any moral standard which was universally accepted?

Yeah that's true, however there is a distinction that he makes which seems true to me which is that although different societies might practice different moralities this does not mean that there isn't one morality. whether there is or not is what I'm looking for help with, but this example fails to disprove that there isn't. He used the example that different societies have thought different things about whether the earth is flat or round or whether it goes around the sun or the sun goes around it. Just because different societies have believed different things about this doesn't mean that there isn't a right answer. Some ancient tribe might have believed human sacrifice was ok and believed that the sun goes around the earth but this does not make either belief true, the truth isn't changed by what people believe about it.

So we need to address the overall issue of objective truth and in particular objective morality.

When I denied objective truth to him he asked me whether or not it is objectively true that there is no objective truth. You shoot yourself in the foot either way you answer if you try to disprove it.

That's my dilemma, it seems that objective truth is inescapable, we can't deny it without contradicting ourselves. Also I can't find a way to avoid objective morality when it comes to the situation of abortion as he has argued it, it seems "objectively wrong" to say it is ok to kill an innocent person. I don't know how to avoid that without denying something that I know is true which is that murder is wrong.

Help Plz!!!! And thanks also for the time that you all have already given to me I appreciate it a lot.