A man makes inferiors his superiors by heat; self control is the rule. Anger is an uncontrollable feeling that betrays what you are when you are not yourself. Anger is that powerful internal force that blows out the light of reason. Know this to be the enemy: it is anger, born of desire.
If you are angry you will share anger, if you are greedy you will share greed, if you are full of lust you will share your lust. We can share only that which we have, we cannot share that which we don't have. This has to be the fundamental thing to be remembered; hence the first step is meditation and the second step is compassion.
So a voice in the mountain is enough to let loose an avalanche. A word too much may be followed by a caving in. If the word had not been spoken, it would not have happened.
One cannot completely get rid of the six passions: lust, anger, greed, and the like. Therefore one should direct them to God. If you must have desire and greed, then you should desire love of God and be greedy to attain Him.
Human anger is a higher thing than what is called divine discontent. For you must be angry with something; but you can be discontented with everything.