Kai-Fu Lee poses with Buddhist monk Hsing Yun. Photo provided to China Daily

"(It) woke me up," Lee writes.

"I'd long believed maximizing my influence and making a difference in the world was my purpose. But the master warned me that the quest for influence misdirects us toward seeking fame and fortune."

He realized his lust for fame drove him to work too hard. And objective-oriented work destroyed his health.

"It wasn't until my body fell ill that I realized my mind's illness was more serious."

The master's words made Lee reflect on his past.

Lee has learned to relax. His treatment has proven successful.

Now, his doctor allows him to work limited hours.

He said at the book launch that some of the seven "credits" he has learned are knowing health is priceless, everything happens for a reason and how to live in the present.

Lee also confesses he'd neglected the emotional needs of his family and parents, and will spend more time with them.

"If not for cancer, I'd probably continue with my old ways," he says.

"I'd perhaps become richer, and more famous and successful. But the illness and facing death have taught me a lot. I'll still work to make the world better. But now I know how to live a happier and more fulfilling life."