In 1989, just out of high school, I was faced with the tough job of deciding my own course of study, which was only three months away from university. In those days in Pakistan, there were limited choices: becoming a doctor or an engineer or entering the financial world after obtaining a business degree. I didn't have any interest in engineering, so all I had to do was either medical or commercial work. I couldn't decide.
My uncle, an influential member of the family, recommended that I spend a month in an international company and then a month at a hospital. Then I could make a decision. I thought it was a great idea.
I was accepted for a month's placement（实习工作）at a foreign bank in Karachi. I had some insight into how the financial world worked, met new acquaintances, and enjoyed the general relaxed atmosphere of the office.
The month passed quickly, and I was soon employed at one of Karachi's premier hospitals. The experience could not have been more different. There was a tense atmosphere at the hospital. Days began sooner（at seven as opposed to nine in the morning at the bank）, and they were full of interminable（无止境的）chores and late-night visits! It was insane（疯狂的）, working all day, all night, and then another.
I was starting to think about both of my experiences. The bank had offered a more relaxing environment, better working hours and less pressure. It was exciting and unpredictable in the hospital, but it was hard to learn and practice. It looked like the business choice would win.
Near the end of my month in the hospital, I was on my way back from a particularly hectic（紧张忙碌的）evening call, and there was a public bus in front of me, and there were some kids in it. While the driver threaded his way through the cars, I saw that the boys were swaying left and right.
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All of a sudden, a boy fell from the back of the bus.
……
When I visited him at the hospital the following morning, all his family members stood up with grateful smiles on their faces.
