“The caste system in Hinduism is distributed as follows: the white class to which belong the clergy and scholars [Brahmins (priests)], the red class which includes princes and knights [Kshatriyas (warriors)], the yellow class which includes farmers and traders [Vaishyas (common people, including merchants)], and the black class which includes people of handicrafts and industry [Shudras (servant classes)]. As for the fifth class or what is known as the untouchables, it includes people of low character. Upper classes enslave lower ones and the lower serve the upper.”
