Mbh 12.107.2a

"'Bhishma said, "Between the aristocracy on the one side and the kings on the other, avarice and wrath, O monarch, are the causes that produce enmity.[328] One of these parties (viz., the king,) yields to avarice. As a consequence, wrath takes possession of the other (the aristocracy). Each intent upon weakening and wasting the other, they both meet with destruction. By employing spies, contrivances of policy, and physical force, and adopting the arts of conciliation, gifts, and disunion and applying other methods for producing weakness, waste, and fear, the parties assail each other. The aristocracy of a kingdom, having the characteristics of a compact body, become dissociated from the king if the latter seeks to take too much from them. Dissociated from the king, all of them become dissatisfied, and acting from fear, side with the enemies of their ruler. If again the aristocracy of a kingdom be disunited amongst themselves, they meet with destruction. Disunited, they fall an easy prey to foes. The nobles, therefore, should always act in concert. If they be united together, they may earn acquisitions of value by means of their strength and prowess. Indeed, when they are thus united, many outsiders seek their alliance. Men of knowledge applaud those nobles that art united with one another in bonds of love. If united in purpose, all of them can be happy. They can (by their example) establish righteous courses of conduct. By behaving properly, they advance in prosperity. By restraining their sons and brothers and teaching them their duties, and by behaving kindly towards all persons whose pride has been quelled by knowledge,[329] the aristocracy advance in prosperity. By always attending to the duties of setting spies and devising means of policy, as also to the matter of filling their treasuries, the aristocracy, O thou of mighty arms, advance in prosperity.