Mbh 12.140.3d

The king who having made peace with a foe sleeps happily in truthfulness is like a man who sleeping on the top of a tree awakes after a fall. When one falls into distress, one should raise one's self by all means in one's power, mild or stern; and after such rise, when competent, one should practise righteousness. The king should always honour the foes of his foes. He should take his own spies as agents employed by his foes. The king should see that his own spies are not recognised by his foe. He should make spies of atheists and ascetics and send them to the territories of his enemies. Sinful thieves, who offend against the laws of righteousness and who are thorns in the side of every person, enter gardens and places of amusement and houses set up for giving drinking water to thirsty travellers and public inns and drinking spots and houses of ill fame and holy places and public assemblies. These should be recognised and arrested and put down. The king should not trust the person that does not deserve to be trusted nor should he trust too much the person that is deserving of trust. Danger springs from trust. Trust should never be placed without previous examination. Having by plausible reasons inspired confidence in the enemy, the king should smite him when he makes a false step. The king should fear him, from whom there is no fear; he should also always fear them that should be feared. Fear that arises from an unfeared one may lead to total extermination. By attention (to the acquisition of religious merit), by taciturnity, by the reddish garb of ascetics, and wearing matted locks and skins, one should inspire confidence in one's foe, and then (when the opportunity comes) one should jump upon him like the wolf. A king desirous of prosperity should not scruple to slay son or brother or father or friend, if any of these seek to thwart his objects.