Summary:
The book explores the idea of cleanliness in different cultures and how societies create rules about purity and impurity to organize social life. It examines how these concepts of pollution and taboo are deeply intertwined with systems of power and cultural norms, influencing everything from religion to social behavior.
Key points:
1. Cultural Relativism: Douglas says that ideas of purity vary by culture. Cleanliness and pollution are social constructs that help maintain order and must be viewed within a culture's beliefs.
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