Punish a mocker and others will learn from his example. Reprove a wise man and he will be the wiser. (Proverbs 19:25, tlb)
Learning is sometimes the result of suffering. There is a great difference between the person who learns from criticism and the person who refuses to accept correction.
How we respond to criticism determines whether or not we grow in wisdom.
The next time someone criticizes you, listen carefully to all that is said. You might learn something.