There is nothing called low-caste and high-caste. It is a distortion of the original concept. The idea is in order to run a society or even a indivdual properly one needs to imbibe 4 basic qualities of - Thinker (Bramhin), Protector (Kshatriya), Economist (Vaishya), Worker (Shudra). All of them are equal and do not exist in isolation. Even in life one has to imbibe all the 4 qualities to be successful. This concept will always be true everywhere in whatever profession people pursue. It has been distorted and abused by confused people over time. Hinduism was always a 21st century concept, perennial and timeless, but the rest of the world adopted the same by becoming secular. Only Islam could not but they will change oneday. Because it is based on human being's natural intelligence. Most Hindus are not aware.
