The duty of disciples is to wait respectfully upon their preceptor for doing his bidding; that of Brahmanas is to study the Vedas and bear them in memory; that of servants is to obey the commands of their masters; that of the king is to protect his people by supporting the good and punishing the wicked. It is said that the duties of a Kshatriya are the protection of all creatures from wrong and oppression.
नागभार्योवाच शिष्याणां गुरुशुश्रूषा विप्राणां वेदधारणम्। भृत्यानां स्वामिवचनं राज्ञो लोकानुपालनम्॥ सर्वभूतपरित्राणं क्षत्रधर्म इहोच्यते। वैश्यानां यज्ञसंवृत्तिरातिथेयसमन्विता॥