Recently I was asked how it is that I prevent myself from becoming angry. The answer is the truth. It's not that I'm preventing myself from becoming angry, but that I understand the truth that anger is unecessary.
When someone is hurt by someone else they desire to see the offender hurt in return, they call this justice, but there is a misunderstanding that lies play a big role in. In truth the offender is already hurting, there is no need to hurt them back for the job has already been taken care of. The truth is more powerful than their lies for they can lie about their state of being, but the lies cannot change the fact that they are miserable.
The lies about their state bring victims of their hurtful nature to desire vengeance, but the victims only desire this vengeance because they believe in the lie. Should the victim know the truth of the offender's misery then the victim would know that there is no need to return fire for there is nothing that the victim could return that is any worse than what the offender already lives.
If you really want vengeance upon someone for a wrong you believe they've committed against you then give them the worst there is to give. Leave them in the pit of despair they've created for themselves.