Who taught that there was no absolute right and wrong

Answer: socrates

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.