Mahabharata 12.60.3

12.60.3

kena svidvardhate rāṣṭraṃ rājā kena vivardhate |
kena paurāśca bhṛtyāśca vardhante bharatarṣabha || 3 ||

Vaisampayana said, "After this, Yudhishthira, saluted his grandsire, viz. the son of Ganga, and with joined hands and concentrated attention, once more asked him, saying, 'What are the general duties of the four orders of men, and what the special duties of each order? What mode of life should be adopted by which order? What duties are especially called the duties of kings? By what means does a kingdom grow, and what are those means by which the king himself grows? How also, O bull of Bharata's race, do the citizens and the servants of the king grow? What sorts of treasuries, punishments, forts, allies, counsellors, priests, and preceptors, should a king avoid? Whom should the king trust in what kinds of distress and danger? From what evils should the king guard himself firmly? Tell me all this, O grandsire!'