One day, 50 students were listening to a speech about happiness（幸福）.The teacher stopped his speech and asked all the students to take part in an activity. He gave everyone a balloon（气球）and asked them to write their names on the balloons with a black marker（马克笔）. After that, all the balloons were collected and moved to another room. Then the students went into the room to find their own（自己的）balloons which had their names on within five minutes. Everyone rushed around, looking for their balloons here and there. They bumped into and tripped （绊倒） over each other. But most of them couldn't find their own balloons.
After seeing this, the teacher asked each student to pick up a balloon call the name on it, try to find the owner of the balloon. A few minutes later, everyone found her or his own balloon.
The teacher said "The balloons are like the happiness we want. Everyone is busy looking for their own happiness, not caring about others. But sometimes the best way to find happiness is to help others. Help them find happiness and you can find your own."
