Control the tongue An old Persian king assigned a pious man to teach his young prince some good manners. The first lesson master taught the young prince was to control his tongue. He said, Mocontrolling your tongue is the most important ability.m Do not talk and that most talks are vain talks. Prince took the advice of the master to heart He would not utter a word for days and weeks on end. The king on the other hand had hard time adjusting to new prince who would not utter