The origin of the caste system, formulated by the great legislator Manu, was admirable. He saw clearly that men are distinguished by natural evolution into four great classes: those capable of offering service to society through their bodily labour (Sudras); those who serve through mentality, skill, agriculture, trade, commerce, business life in general (Vaisyas); those whose talents are administrative, executive and protective—rulers and warriors (Kshatriyas); those of contemplative nature, spiritually inspired and inspiring (Brahmins).