Stoic 6 Pack:
Epictetus
If you wish not to be of angry temper
do not feed the habit
At first, keep quiet and
count the days on which you have not been angry!
I used to be in passion everyday
now every second day
Then every Third
Then every Fourth
but if you have intermitted thirty days
Make a sacrifice to God!
For the anger habit at first
begins to be weakened
and then completely destroyed!