Tom works in a big company and he is often very busy. One day, when he came out of the office, it was late in the evening. There was no bus at that moment, so he had to walk home. The street was very dark and he could hardly see anything. So he had to walk along slowly and carefully.
Juts at that time, Tom found a man with a lantern coming in the distance. "If I go with that person, I will be able to see well," he thought.
When the man with a lantern got nearer, Tom found he was coming with a cane(手杖) in his hand. Tom thought this was strange and asked, "Why are you walking so slowly with a cane when you have a lantern?"
The man said, "You know, I'm blind. That is why I use thins cane to walk. " Tom laughed, "Ha, ha, ha. You're blind? Then why do you carry a lantern? You don't need a lantern if you can't see. "
The man with the lantern answered, "Yes, I can't see. And this lantern cannot help me, but it can help others in the dark. I know better than anyone else how it feels when you cannot see. "
Tom didn't say anything for a long time. Then he said sorry to the man.