existential potential wrote:if ethical opionions are just emotive, are there then any fundamental values that humanity shares, from which we can begin to discuss ethical matters in an "objective" manner?
Well, if ethical opinions are just emotive, then there's no reason to determine if there are any fundamental values that humanity shares, since those values wouldn't be
ethical values. That's Ayer's point.
It is also fruitless to determine if there are any fundamental values that all of humanity shares, since one could always find exceptions to any ethical rule
somewhere. Surely there must have been someone, at some time, who thought it was all right, for instance, to rape babies for fun. But then that sort of analysis just leads to moral relativism, which is nothing but a dead end.