Proverbs 26:9-12

As a thorn goeth up into the hand of a drunkard, So is a parable in the mouth of fools. The great God that formed all things Both rewardeth the fool, and rewardeth transgressors. As a dog returneth to his vomit, So a fool returneth to his folly. Seest thou a man wise in his own conceit? There is more hope of a fool than of him.