I only suggest to you: Will you dwell on killing this man? You wish for revenge? If you do, he has already killed you by slow poison. So, let it go. Why waste your time? His life will see to his death.

You stubborn bastard. Take it from someone who knows firsthand, there’s a lot to be said for forgiveness. Grudges seldom hurt anyone except the one bearing them."
"And there’s a lot to be said for knocking enemies upside their heads and cracking skulls open."
Ash & Urian

Hatred bears all things, believes all things, hopes all things, endures all things.

We learn our lessons; we get hurt; we want revenge. Then we realize that actually, happiness and forgiving people is the best revenge.

The foolish says I am going to revenge,for I want to pay back coin for coin,but the wise will say,I will forgive,for he knows that inside forgiveness is a better revenge.

Revenge brings life's illnesses only forgiveness can heal.