Unforgiveness is a boomerang that comes back

In 1979 Mother Antonia started a tradition in the prison which she calls the Day of Forgiveness: her protest agains the eye-for-an-eye logic that dominates prison culture. She believes forgiveness is far more effective than any punishment at controlling all the hate and homicide.

"Forgiveness is hard," she says, "but not forgiving is harder. Unforgiveness will age me, it will make me sick, and it will make me ugly. Nothing can bring me so low that I'm goijng to not forgive somebvoedy and destroy myself. Because that's what unforgiveness does. It's a boomerang that comes back."

~ from THE PRISON ANGEL by M. Jordan and K. Sullivan