请根据以下的任务说明和写作要求，以We Cannot Do without Gratitude 为题写一篇150字左右的英语短文，在校园英文小报上的Hot Topic栏目发表。
[任务说明]
“感激”是每个人都应该懂得的一种待人接物的态度。请认真阅读下面的短文，然后完成以下写作任务。
1．概括故事的内容要点，以此引入话题，该部分的词数大约30；
2．就“感激”这个主题发表你的看法，至少包含以下内容要点：
1）什么是感激（gratitude）？
2）感激的表现方式。
3）表达感激最重要在于真诚（sincere）。
4）故事的启示和你的结论。
[写作要求]
1．你可以使用实例或其他论述方法支持你的论点，也可以参照阅读材料的内容，但不要抄袭阅读材料中的句子。
2．短文的开头已给出，不计入所限字数。短文开头：
The other day I read a story which is about …
[阅读材料]
As I got into a taxi one afternoon, the driver was very angry about something that had happened to him earlier that day. Here’s how he told the story:
“One of my fares (旅客) left a wallet in my cab this morning. Nearly three hundred dollars in it. I spent more than an hour trying to trace the guy. Finally I found him at his hotel. He took the wallet without a word and glared at me as though I’d meant to steal it.”
“He didn’t give you a reward?” I asked.
“Not a cent. But it wasn’t the money I wanted,” he fumbled, then exploded, “If the guy had only said something…”
Why was the driver so upset? All he wanted was something simple, but even more valuable than money: to be thanked for his efforts. In short, what he wanted, what he needed but did not get, was a little bit of gratitude.
