18.42 Serenity, self-restraint, austerity, purity, forgiveness and also uprightness, knowledge, realisation and belief in God are the duties of the Brahmanas, born of (their own) nature.
18.43 Prowess, splendour, firmness, dexterity and also not fleeing from battle, generosity and lordliness are the duties of the Kshatriyas, born of (their own) nature.
18.44 Agriculture, cattle-rearing and trade are the duties of the Vaisya (merchant), born of (their own) nature; and action consisting of service is the duty of the Sudra (servant-class), born of (their own) nature.
18.47 Better is one's own duty (though) destitute of merits, than the duty of another well performed. He who does the duty ordained by his own nature incurs no sin.
18.49 He whose intellect is unattached everywhere, who has subdued his self, from whom desire has fled, he by renunciation, attains the supreme state of freedom from action.
असक्तबुद्धिः सर्वत्र जितात्मा विगतस्पृहः |
नैष्कर्म्यसिद्धिं परमां संन्यासेनाधिगच्छति ||१८-४९||