Anger makes you smaller,
While forgiveness forces you to grow beyond what you were.
 
~~Cherie Carter-Scott

A quarrel is like buttermilk:
Once it's out of the churn,
The more you shake it,
The more sour it grows.
 
~~Irish Proverb    

If you are patient in one moment of anger, you will escape a hundred days of sorrow.

-Chinese Epigram