No man can think clearly when his fists are clenched.
George Jean Nathan
One should not lose one’s temper unless one is certain of getting more and more angry to the end.
William Butler Yeats
Revenge is often like biting a dog because the dog bit you.
Anybody can become angry – that is easy, but to be angry with the right person and to the right degree and at the right time and for the right purpose, and in the right way – that is not within everybody’s power and is not easy.
Be not angry that you cannot make others as you wish them to be, since you cannot make yourself as you wish to be.