After 20 years in business, it is time to go back to school

I have just spent four full days, including a weekend, at Peking University taking part in a business journalism course, which surprised many of my colleagues.

"You have 20 years' experience as a journalist, 15 of them in business reporting - so what can you possibly learn from this kind of training?" a colleague asked.

I had anticipated all of my classmates would be younger than me, some even in their 20s, and all from Chinese-language media.