If 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.
EpictetusIt has been ordained that there be summer and winter, abundance and dearth, virtue and vice, and all such opposites for the harmony of the whole, and (Zeus) has given each of us a body, property, and companions.
Epictetus