Pope Shenouda III
Train yourself to quit a certain habit while fasting.
An example of this is a smoker who trains himself while fasting to quit smoking. Likewise he who is addicted to drinking coffee or tea and cannot rid himself of this habit. Likewise the person who is addicted by to watching television, wasting his time, discharging himself of his responsibilities.
The period of fasting is an opportunity for to all of them to quit their habits.