Years ago，I was on a train ride when I noticed a family getting on board. There were two little girls，their mom，and her friend，all of them with big bags. From what it looked like，they were going to be away for several days. One of the girls sat next to an older gentleman，who started talking with her.
As the train ride went on，the little girl said that they were on their way to the children's hospital in the city，where her sister Hayley was receiving treatment. Without asking more about it，the man spoke with the girls on and off during the journey. Towards the end of the ride，the man started writing something on a piece of paper. As the train stopped at his station，he walked over to the girl's mom and handed her a check saying， "That's for Hayley. " Then he got off the train before anyone had a chance to thank him.
The mom was puzzled（迷感不解的）at first. After seeing the check，she felt thankful for what he had done. She looked up，hoping to catch the man before he disappeared from view，but he was already gone.
The moment left a lasting impression on me. It reminded me that small acts of kindness can make a big difference in someone's day. It also made me wonder about the man's story and what led him to do this for strangers on a train.
