be cunning

References in classic literature ?
Thou art most wonderfully cunning, indeed," replied Jones; "however, I will write to my charmer, since I believe you will be cunning enough to find him to-morrow at the alehouse.
Is there a situation around you where you need to be cunning, use your wisdom and power and make a noise about something or someone?
Indeed the most commonly featured character trait seems to be cunning, or craftiness, which, since it is often disjoined from any perception of the right, is more what Aristotle would call deinotes, the ability to negotiate contingencies to one's own advantage, a morally indifferent ability.