Even a society which allows human sacrifices would have a definition for murder. I have yet to hear a society where you can go around killing anyone you like whenever you feel like it. Or a society where you can take someone else's spouse or estate just because they struck your fancy.
Of course there are moral absolutes.
Aren't murder, adultery, and theft universally considered wrong?
Some might argue that universal perception does not determine what is absolute. So how does one truly perceive what is absolute?
There has to be moral absolutes. Otherwise there is only...
@moon bear:
of course! that is quite palpable.
http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/cardat.html
but the point of contention here was whether it can be used on stones...
the above list i think settles the question.