Whoever corrects a mocker invites insults;
whoever rebukes the wicked incurs abuse.
Do not rebuke mockers or they will hate you;
rebuke the wise and they will love you.
Instruct the wise and they will be wiser still;
teach the righteous and they will add to their learning.
The fear of the LORD is the beginning of wisdom,
and knowledge of the Holy One is understanding.
For through wisdom your days will be many,
and years will be added to your life.
If you are wise, your wisdom will reward you;
if you are a mocker, you alone will suffer. (NIV)