"I lose my temper, but it's all over in a minute," said the student. "So is the hydrogen bomb," I replied. "But think of the damage it produces! -George Sweeting

All anger is not sinful, because some degree of it, and on some occasions, is inevitable. But it becomes sinful and contradicts the rule of Scripture when it is conceived upon slight and inadequate provocation, and when it continues long -

Anger will never disappear so long as thoughts of resentment are cherished in the mind. Anger will disappear just as soon as thoughts of resentment are forgotten

When people get angry they lose all sense of happiness. Even if they are good looking and normally peaceful, their faces turn livid and ugly. Anger upsets their physical well-being and disturbs their rest; it destroys their appetites and makes them age pre-maturely. Happiness, pea ce, and sleep evade them, and they no longer appreciates people who have helped them and deserve their trust and gratitude --dalai lama

Indulge not thyself in the passion of anger; it is whetting a sword to wound thine own breast, or murder thy friend.

--akhenato

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