A group of old classmates, who have succeeded in their work, got together to visit their old university professor. The conversation soon turned to complaining about the stress in work and life. Offering his guests coffee, the professor went to the kitchen and returned with a large pot of coffee and many cups-china , plastic and glass, some plain  looking, some expensive and some lovely. The professor told them to help themselves to the coffee. When all the students had a cup of coffee in hand, the professor said, "Can you notice all the nice looking expensive cups were taken, leaving behind the plain and cheap ones? While it is normal for you to want only the best for yourselves, that is the source  of your problems and stress." "What all of you really wanted was coffee, not the cup, but you went for the best cups and were eyeing each other's cups." "Now think about this: life is the coffee, and the jobs, money and position in society are the cups. They are just tools to hold and contain life, and do not change the quality of life. Sometimes, by concentrating only on the cups, we fail to enjoy the coffee. So don't let the cups drive you, enjoy the coffee instead." What can we learn from the old professor's words?
We should use the plain and cheap cups to drink coffee. We should concentrate on the appearance of cups. We should concentrate on life itself but not other unimportant things We should learn how to work out problems in our work and life.