According to R. W Hepburn, "To move towards the objectivist pole is to argue that moral judgements can be rationally defensible, true or false, that there are rational procedural tests for identifying morally impermissible actions, or that moral values exist independently of the feeling-states of individuals at particular times."
"if we adopt the principle of universality: if an action is right (or wrong) for others, it is right (or wrong) for us. Those who do not rise to the minimal moral level of applying to themselves the standards they apply to others—more stringent ones, in fact—plainly cannot be taken seriously when they speak of appropriateness of response; or of right and wrong, good and evil."
The United Nations' Universal Declaration of Human Rights can be read as assuming a kind of moral universalism. The drafting committee of the Universal Declaration did assume, or at least aspired to, a "universal" approach to articulating international human rights. Although the Declaration has undeniably come to be accepted throughout the world as a cornerstone of the international system for the protection of human rights, a belief among some that the Universal Declaration does not adequately reflect certain important worldviews has given rise to more than one supplementary declaration, such as the Cairo Declaration on Human Rights in Islam and the Bangkok Declaration.
^Gowans, Chris (Dec 9, 2008). Edward N. Zalta, ed, ed. "Moral Relativism". The Stanford Encyclopedia of Philosophy (Spring 2012 Edition). Let us say that moral objectivism maintains that moral judgments are ordinarily true or false in an absolute or universal sense, that some of them are true, and that people sometimes are justified in accepting true moral judgments (and rejecting false ones) on the basis of evidence available to any reasonable and well-informed person.
^Non-cognitivism: A meta-ethical theory according to which moral issues are not subject to rational determination. Dealing with values, not facts, moral assertions are neither true nor false, but merely express attitudes, feelings, desires, or demands.Philosophy Pages
^Prescriptivism: R. M. Hare's contention that the use of moral language conveys an implicit commitment to act accordingly. Thus, for example, saying that "Murder is wrong" not only entails acceptance of a universalizable obligation not to kill, but also leads to avoidance of the act of killing.Philosophy Pages