Moral universalism

Moral universalism (also called moral objectivism or universal morality) is the meta-ethical position that some system of ethics, or a universal ethic, applies universally, that is, for "all similarly situated individuals", regardless of culture, race, sex, religion, nationality, sexuality, or any other distinguishing feature. Moral universalism is opposed to moral nihilism and moral relativism. However, not all forms of moral universalism are absolutist, nor are they necessarily value monist; many forms of universalism, such as utilitarianism, are non-absolutist, and some forms, such as that of Isaiah Berlin, may be value pluralist.

Overview
According to R. W Hepburn, to adopt moral objectivism 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. Linguist and political theorist Noam Chomsky states that

... 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.

In fact, one of the, maybe the most, elementary of moral principles is that of universality, that is, If something's right for me, it's right for you; if it's wrong for you, it's wrong for me. Any moral code that is even worth looking at has that at its core somehow.

This is a formulation of the Golden rule. The source or justification of a universal ethic may be thought to be, for instance, human nature, shared vulnerability to suffering, the demands of universal reason, what is common among existing moral codes, or the common mandates of religion (although it can be said that the latter is not in fact moral universalism because it may distinguish between gods and mortals). As such, models of moral universalism may be atheistic or agnostic, deistic (in the case of several Enlightenment philosophers), monotheistic (in the case of the Abrahamic religions), or polytheistic (in the case of Hinduism). Various systems of moral universalism may differ in various ways on the meta-ethical question of the nature of the morality, as well as in their substantial normative content, but all agree on its universality.

History
An enormous range of traditions and thinkers have supported one form or another of moral universalism, from the ancient Platonists and Stoics, through Christians and Muslims, to modern Kantian, Objectivist, natural rights, human rights and utilitarian thinkers. The United Nations' Universal Declaration of Human Rights is said to be an example of moral universalism in practice, but Article 29, Section 3 of that document states, "These rights and freedoms may in no case be exercised contrary to the purposes and principles of the United Nations." The inclusion of this wording places the UN, itself, beyond the purview the very rights it claims to be "universal."