Holding on to anger is like grasping a hot coal with the intent of throwing it at someone else, you are the one who gets burned.
Buddha

Anger is a feeling that makes your mouth work faster than your mind.

Never reply when you are angry
Never make a promise when you are happy
Never make a decision when you are sad

One without anger is the one who is happiest
Buddha

You will not be punished for anger
You will be punished by your anger
Buddha

Holding on to anger is like drinking poison and expecting the other person to die.
Buddha

Anger and intolerance are the enemies of correct understanding.
Mahatma Gandhi

No matter hard the past,
You can always begin again.
Buddha

When anger rises, think of the consequences.
Confucius

Forgive people in yo life, even those who are not sorry for their actions.
Holding on to anger only hurts you, not them.

Anger doesn't solve anything.
It builds nothing,
but it can destroy everything.

When angry count to ten before you speak. If very angry, count to one hundred.
Thomas Jefferson

The more anger towards the past you carry in your heart,
The less capable you are of loving in the present.