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.
The man who gives way to anger, or hatred, or any other passion, cannot work; he only breaks himself to pieces, and does nothing practical. It is the calm, forgiving, equable, well-balanced mind that does the greatest amount of work.
Do you recall the story of the young Yogi in the Mahâbhârata who prided himself on his psychic powers by burning the bodies of a crow and crane by his intense will, produced by anger?
If you strike a child, take care that you strike it in anger, even at the risk of maiming it for life. A blow in cold blood neither can nor should be forgiven.