Knowing manners is to change the attitude of looking themselves in the context of society. When done, it allows life to continue to go smoothly. When an obstacle is found, they will be able to step through the difficulty.
The changing attitude as a courtesy to look at themselves in the context of society. Which when done will help to make life smoother. When encountering obstacles It will be possible to overcome these difficulties.
Knowing etiquette is changing attitudes one to look himself in the context of society. When do to help make life goes more smoothly when meet obstacles, it can go on without difficulty.