There once was a king. He decided to do an experiment (实验) like a scientist. He made someone put a big rock right in the middle of the road to see who would move it out of the way.
First, some rich people walked by. They walked around the rock, complaining (抱怨) that the king didn't look after the road very well.
Then a farmer came over. He was going home with his arms full of food for his family. When he saw the rock, he put his things down and went to move it away. The rock was heavy. It took him some time to move it, but he made it at last.
When the farmer was about to leave, he found a bag lying near his things. He opened the bag to find that it was full of money, along with a letter from the king. It said that the money was a reward(报酬) for him because he spent the time and energy moving the rock out of the road. What he did helped others.
If you see a job in front of you, don't leave it to the next person. Instead(代替, 而不是), get the job done to help the people who come after you.