Isolation means a lack of growth. I grew up in China at a time when the country was completely isolated. That era is over.

I firmly believe that digitalization has only just begun in China. In addition to the taxi, transport, shopping and hotel businesses, many other industries will follow: education, health care, administration, even the legal branch - everything, really. There is still a lot of opportunity in China for the inventive and ambitious ones.

Growth will be slower, no one denies that. But the question is: Where are the chances and opportunities now? I see some positive and some negative trends.

I think our legal system needs to be developed. Cases of citizens who are detained and then have to wait much too long for a trial - that is scary, for everyone. When someone commits a crime he needs to be charged quickly. Why does this take so long in many cases? I don't know. Is it because our legal system is still rudimentary? China has promised to modernize its legal system. This has high priority.

I'm afraid what we are building today will not have the same impact and sustainability of the architecture of a 100, 500 or 1,000 years ago. The buildings of those days were miracles. We don't perform such miracles today. So we should be a little more modest. For my part, I'll be glad to show one of my buildings one day to my grandchildren and say: I'm proud of that.

Because people along the route had realized that there was demand and quickly organized supply. That's so Chinese. In a well-organized country like Germany, such a problem may not have arisen in the first place, but in China people immediately recognized an opportunity.

It is worthwhile to engage in something that is close to one's heart. I had a scholarship. So if I donate money to give brilliant Chinese students an opportunity to study abroad, then this embodies everything I believe in: education, globalization, social mobility. I am an example of social mobility.