"It is natural for the immature to harm others.
Getting angry with them is like resenting a fire for burning."
~ Shantideva ~
A BAG OF NAILS
Once upon a time there was a little boy with a bad temper. His father gave him a bag of nails and told him that every time he lost his temper, he should hammer a nail in the fence. The first day the boy had driven 37 nails into the fence. But gradually, the number of daily nails dwindled down. He discovered it was easier to hold his temper than to drive those nails into the fence.
Finally the first day came when the boy didn't lose his temper at all. He proudly told his father about it and the father suggested that the boy now pull out one nail for each day that he was able to hold his temper. The days passed and the young boy was finally able to tell his father that all the nails were gone. The father took his son by the hand and led him to the fence.
"You have done well, my son, but look at the holes in the fence. The fence will never be the same. When you say things in anger, they leave a scar just like this one. You can put a knife in a man and draw it out, it won't matter how many times you say 'I'm sorry', the wound is still there."
DEFINITIONS
The definition of Aversion is: Exaggerated wanting to be separated from someone or something. (Exact opposite of Attachment.) Because the label of "unpleasant" is very relative and based upon limited information, aversion includes an aspect of exaggeration or "projection".
The definition of Anger is: Being unable to bear the object, or the intention to cause harm to the object. Anger is defined as aversion with stronger exaggeration.
A BIT OF BUDDHIST PSYCHOLOGY
The basic problem according to Buddhism, is that emotions like anger and hatred are based on projections and exaggeration, not on objectivity or wisdom, and thus basically incorrect.
There is little need to explain what anger and hatred do to ourselves by means of the laws of karma; the misery we cause others will come back at ourselves. Nobody wants suffering, so next is a summary of methods which can not only reduce but even eliminate anger and hatred from our minds.
It must be emphasise that to completely eliminate these negative emotions from our mind is a lengthy psychological process, requiring study, mindfulness, reflection and honest observation of one's own mind. To begin with, meditation is an ideal method to review a situation in which one became angry (see the page on meditation). This has the advantage that one is not exposed to the actual situation, but one can review it much more objectively. When regular meditation gives some insight into what anger is and what happens to oneself when feeling angry, then one can gradually try to apply it in real-life situations, preferably of course before one is already under complete control of anger. It is a slow process, but the change in your life and the ones around you can profoundly change for the better.
Is anger or hatred ever justified? A direct answer from Allan Wallace in 'Tibetan Buddhism from the Ground up':
"'Righteous hatred' is in the same category as 'righteous cancer'or 'righteous tuberculosis'. All of them are absurd concepts."
This does not mean that one should never take action against aggression or injustice! Instead, one should try to develop an inner calmness and insight to deal with these situations in an appropriate way. We all know that anger and aggression give rise to anger and aggression. One could say that there are three ways to get rid of anger: kill the opponent, kill yourself or kill the anger - which one makes most sense to you?
"Some people feel patience is showing weakness or pessimism.
But, actually, patience shows the strength and clarity of mind, which are based on wisdom and compassion.
Without proper wisdom and compassion, one cannot practice patience."
~ Khenpo Konchog Gyaltsen Rinpoche ~
But of course not only Buddhism recognises the shortcomings of anger, in the Bible for example in Psalm 37, 14-16 it reads:
"The angry ones draw their swords, the angry ones aim their bows
To put down the poor and the weakened and to kill those who walk on the path of righteousness.
But their sword hits their own heart, their bows will be broken.
With his poverty, the righteous one is richer than all the angry ones in their abundance."
"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."
~ The Buddha ~
"If subconscious anger had a parallel in Buddhist writings, it would have to do with what is called mental unhappiness or dissatisfaction. This is regarded as the source of anger and hostility. We can see subconscious anger in terms of a lack of awarness, as well as an active misconstruing of reality."
~ His Holiness the Dalai Lama ~
"If there are sound reasons or bases for the points you demand, then there is no need to use violence. On the other hand, when there is no sound reason that concessions should be made to you but mainly your own desire, then reason cannot work and you have to rely on force. Thus, using force is not a sign of strength but rather a sign of weakness. Even in daily human contact, if we talk seriously, using reasons, there is no need to feel anger. We can argue the points. When we fail to prove with reason, then anger comes. When reason ends, then anger begins. Therefore, anger is a sign of weakness."
His Holiness the Dalai Lama, from 'The Dalai Lama, A Policy of Kindness: An Anthology of Writings by and About the Dalai Lama', Snow Lion Publications.