then momotaro stood and gave this order : " now all of you must listen to me . the first thing necessary in an army is harmony . it is a wise saying which says that ' advantage on earth is better than advantage in heaven ! ' union amongst ourselves is better than any earthly gain . when we are not at peace amongst ourselves it is no easy thing to subdue an enemy . from now , you three , the dog , the monkey and the pheasant , must be friends with one mind . the one who first begins a quarrel will be discharged on the spot ! " all the three promised not to quarrel . the pheasant was now made a member of momotaro 's suite , and received half a cake . momotaro 's influence was so great that the three became good friends , and hurried onwards with him as their leader . 
the one who first begins a quarrel will be discharged on the spot .
why did the animals promise to stop quarreling ?
why did the animals promise to stop quarreling ?