Proverbs 26:3-5

Complete Jewish Bible

³ A whip for a horse, a bridle for a donkey,
    and a rod for the back of fools.
⁴ Don’t answer a fool in terms of his folly,
    or you will be descending to his level;
⁵ but answer a fool as his folly deserves,
    so that he won’t think he is wise.