Knave! because thou strikest as a knight; / Being but knave, I hate thee all the more. Tennyson.
Knavery is supple, and can bend, but honesty is firm and upright, and yields not. Collier.
Knavery may serve for a turn, but honesty is best in the long-run. Pr.
Knavery's plain face is never seen till used. Othello, ii. 1.
Knaves easily believe that others are like 45 themselves; they can hardly be deceived, and they do not deceive others for any length of time. La Bruyère.
Knaves starve not in the land of fools. Churchill.
Knaves will thrive when honest plainness knows not how to live. Shirley.
Kneeling ne'er spoiled silk stockings; quit thy state; / All equal are within the church's gate. George Herbert.
Know ere thou hint, and then thou may'st slack: / If thou hint ere thou know, then it is too late. Pr.
Know, fools only trade by the eye. Quarles. 50