A group of university graduates visited their old professor. During their visit, the conversation turned to work. The graduates （complain）about their problems and stress in work and in life. After offering coffee to his guests, the professor went to the kitchen and came with a coffee pot and a tray （托盘）. crowded with many different cups；porcelain（陶瓷）, glass, plastic and crystal(水晶).
Some cups were simple, other ones expensive. The professor asked them to pick out their cups (one). When the graduates picked out their favorite cups. The professor explained, "Notice how all the beautiful cups were picked out and the simple and cheap ones (leave)."
"Wanting only the best things for yourself （be）the source of your problems and stress. You need （understand）tat the cup doesn't make the coffee better. Actually, all that you wanted was the coffee not the cup. But you commodiously（有意识地）chose the best cups, and then looked to see what cups others picked. "
"Life is the coffee. Your job, money, position in society… they are the cups. The type of cup doesn't determine the quality of life. Sometimes, by（concentrate）only on the cups. We forget to enjoy the taste of coffee. The happiest people are not those have the best things, but those who enjoy life and make （much）of what they have. "
Hearing this, the graduates were speechless. They had learned another important life lesson from their old professor—that true （happy）means enjoying life and not worrying about unimportant things.
