Mbh 12.57.1d

He is the best of kings who hath wisdom, who is possessed of liberality, who is ready to take advantage of the laches of foes, who has agreeable features, who is conversant with what is bad for each of the four orders of his subjects, who is prompt in action, who has his wrath under control, who is not vindictive, who is high-minded, who is not irascible by disposition, who is equal engaged in sacrifices and other religious acts, who is not given to boasting, and who vigorously prosecutes to completion all works commenced by him. He is the best of kings in whose dominions men live fearlessly like sons in the house of their sire. He is the best of kings whose subjects have not to hide their wealth and are conversant with what is good and what is bad for them. He, indeed, is a king whose subjects are engaged in their respective duties and do not fear to cast off their bodies when duty calls for it; whose people, protected duly, are all of peaceful behaviour, obedient, docile, tractable, unwilling to be engaged in disputes, and inclined to liberality. That king earns eternal merit in whose dominions there is no wickedness and dissimulation and deception and envy. That king truly deserves to rule who honours knowledge, who is devoted to the scriptures and the good of his people, who treads in the path of the righteous, and who is liberal. That king deserves to rule, whose spies and counsels and acts, accomplished and unaccomplished, remain unknown to his enemies. The following verse was sung in days of old by Usanas of Bhrigu's race, in the narrative called Ramacharita, on the subject, O Bharata, of kingly duties: 'One should first select a king (in whose dominions to live). Then should he select a wife, and then earn wealth. If there be no king, what would become of his wife and acquisition?' Regarding those that are desirous of kingdom, there is no other eternal duty more obligatory than the protection (of subjects).