To fulfill your duty with a sense of responsibility is very important in a social life. By the way, you must throw away the thought, "This work belongs to me." Giving the work you can do to others who can do it is also from the good heart. If you allow the other do the work that belongs to you, it is regarded as good heart. Moreover, you should have the heart to help others doing willingly the work they can't do. Moreover, you have to possess the heart to help the other with some works that he cannot do. To accomplish a work together, you must have the wide and big heart of considering looking at the whole team, not keeping your own field or benefit.