SPIEGEL: After the stock market turbulences, does it surprise you that people have started to worry? Zhang: China has consistently surprised us. When I returned from the United States 20 years ago, it was unimaginable that we would end up where we are now. What China has achieved defies all logic. I credit this to the hard work and enterprising spirit of the Chinese people. SPIEGEL: Can you give an example? Zhang: I am a runner. Last October, there was a marathon here in Beijing. I didn't participate this time, but friends told me that the run wasn't prepared too...