To a reasonable creature, that alone is insupportable which is unreasonable; but everything reasonable may be supported.
EpictetusIf you do not wish to be prone to anger, do not feed the habit; give it nothing which may tend to its increase. At first, keep quiet and count the days when you were not angry: "I used to be angry every day, then every other day: next, every two, then every three days!" and if you succeed in passing thirty days, sacrifice to the gods in thanksgiving.
EpictetusWhen you are offended at any man's fault, turn to yourself and study your own failings. Then you will forget your anger.
Epictetus