Friction causes the match to ignite. The lighted match creates light and extinguishes the darkness. Two people having individual ideas can be a stimulus to thought. But when a person argues for the sake of argument, the argument becomes the game, and then there is no satisfaction in conciliation. There is no light, only darkness.
Words can provide the means for disagreement, but they can also provide the means for enlightenment. Is the goal to win a contest or to light the room? Wisdom is found when the contestants are pliable, where they attempt to understand all things, even the wrong of the right, and the right of the wrong. The person who arrives at total knowledge does so by rising above right or wrong. He knows them, and yet he knows not. He has much to say, yet says not. Then it becomes easy for him to conciliate each and all, and he brings light to each and all.