Good manners are important part of our civilization. We know a person from his manners. It is very important for our conduct in the society. So we put too much stress on learning manners. Parents want to teach manners to their children. Teachers want to teach manners to their pupils. Mentors want to teach manners to their disciples. Because manners are so important for us. Manners are very useful, manners make us gentlemen. We are called gentlemen when we show good manners. Good manners make friends for us. Because people like to make friendship with the people of good manners.
Good manners may turn our enemies into our friends. But bad manners will surely turn our friends into our enemies. So we should be very particular about our manners.