Answer a fool according to his folly, lest he be wise in his own conceit.
More Biblical Proverbs:
He that is of a merry heart hasth a continual feast.Biblical
The righteous are bold as a lion.
Biblical
A soft answer turns away wrath.
Biblical
It is more blessed to give than to receive.
Biblical
The borrower is servant to the lender.
Biblical
He that repeats a matter separates very friends.
Biblical