This document discusses various ways that humans vary, including:
- Cultural variations that arise from differing environmental and historical experiences.
- Social differences in nationality, ethnicity, gender, socioeconomic class, political identity, and religion.
- The concepts of ethnocentrism and xenocentrism, and how cultural relativism can promote tolerance of differences.
- How the concept of race has been used to classify humans but is problematic due to blurred categories and associations with discrimination.
- Humans exhibit biological and cultural differences as products of their knowledge systems and environments, so a cultural relativist approach is important.