Contradiction
Where different claims to viewpoints are inconsistent and show opposite meanings.
Relativism
The idea that knowledge, truth, and morality (right and wrong) exist in relation to culture, society, or historical context, and are not true for everyone.
Anthropology
The study of humanity, especially different culture.
Cultural relativism
What is true and right is determined by culture
Mores
The characteristic customs and rules of a society or community.