Directions: Complete the following passage by using ONE word that fits the context.
What is happiness?   小题1:  people have different ideas. Some people are rich; they think they are happy.  小题2:  people have many friends, so they feel   小题3: . Still others are happy because their lives are meaningful. Happiness attracts everyone. For children, happiness often suggests eating something good or   小题4:  with toys.   小题5:  a stamp collector, stamps bring more delight than meals. And for a scientist, a discovery or an invention rather than  小题6: else gives him greatest satisfaction. As everything exists only because of its opposite, happiness exists only when  小题7:  exists. Just as a person who does not know failure never knows success, a person, who has not experienced suffering or sadness never knows   小题8:  happiness means. Cheer up and be happy. Happiness is not far from you. It’s just around you. Try to grasp it and enjoy it.