The belief that there is no absolute moral orientation, and no
absolute right or wrong, is called Moral Relativism. Among the most
prominent contemporary philosophical defenders of moral relativism
are Gilbert Harmann and David B. Wong. Notable historical
philosophers and those of similar profession that proposed and
described forms of moral relativism include the Greek historian
Herodotus and sophist Protagoras, and the Chinese Daoist
philosopher Zhuangzhi.