Proverbs 27:21 in the World English Bible
The crucible is for silver, and the furnace for gold; but man is refined by his praise.
Context
20 Hell and destruction are never full; so the eyes of man are never satisfied.
21 As the fining pot for silver, and the furnace for gold; so is a man to his praise.
22 Though thou shouldest bray a fool in a mortar among wheat with a pestle, yet will not his foolishness depart from him.