Caste is a fact in nature and must be accepted as such, because there are different levels of human development; but one should not fall into a trap of making it an eternal fact of nature, of refusing to make the caste system flexible and its members mobile, so that they can pass up from a lower to a higher form of caste during their lifetime--and not in some future incarnation as the Brahmins assert. But every social hierarchy tries to preserve itself for selfish purposes, and this is what happens with the caste system. Is it any wonder that sooner or later the members of the lower caste revolt and destroy the whole system? This happened in India, is still happening in India, and has happened in China, Japan, and many other countries.
-- Notebooks Category 15: The Orient > Chapter 2: India > # 248