A cunning man overreaches no one half as much as himself.

The most sure method of subjecting yourself to be deceived, is to consider yourself more cunning than others.

Cunning leads to knavery; it is but a step from one to the other, and that very slippery; lying only makes the difference; add that to cunning, and it is knavery.

In a great business there is nothing so fatal as cunning management.

The animals to whom nature has given the faculty we call cunning know always when to use it, and use it wisely; but when man descends to cunning, he blunders and betrays.

Cunning is the art of concealing our own defects, and discovering other people's weaknesses.