A villager made his living by selling seeds(种子) in the market.
He had ten bags with him, which he would carry to another village to buy seeds. Of the ten bags, one was broken. Although it was in poor condition, the villager would carry it with all the other bags to get the seeds from another village.
One day, the broken bag thought, "I am just a broken bag with many holes, why does my owner take me along to bring seeds? "It then asked the villager, "Why don't you throw me away? You know I am useless. I drop all the seeds you put in me. "
The villager smiled, "I will tell you what good you have done to me and others." Saying this, the villager took the broken bag outside and said," Do you see all these trees? These trees are all along the way from this village to the next, from where I buy seeds. These trees have grown from the seeds you have been dropping along the way. "
The villager continued, "These trees give cool shade to tired people on hot sunny days. They also give oxygen(氧气) to humans and animals. Can't you see you've done the world a great service?"
The broken bag was happy to learn all this. It realized that everyone has something good to offer to the world!