To seek to extinguish anger utterly is but a bravery of the Stoics. We have better oracles: 'Be angry, but sin not.' 'Let not the sun go down upon your wrath.'
I know, to banish anger altogether from one's breast is a difficult task. It cannot be achieved through pure personal effort. It can be done only by God's grace.
Those who are not angry at the things they should be angry at are thought to be fools, and so are those who are not angry in the right way, at the right time, or with the right persons.
Try to understand why it is happening, from where it is coming, where the roots are, how it happens, how it functions, how it overpowers you, how in anger you become mad. Anger has happened before, it is happening now, but now add a new element to it, the element of understanding -- and then the quality will change. Then, by and by, you will see that the more you understand anger, the less it happens. And when you understand it perfectly, it disappears. Understanding is like heat. When the heat comes to a particular point -- one hundred degrees -- the water disappears.
There are those who discover they can leave behind destructive reactions and become patient as the earth, unmoved by fires of anger or fear, unshaken as a pillar, unperturbed as a clear and quiet pool.