I have a profound dislike for showing off one's material wealth. This is insensitive and it is not what human hearts are made for. But what I like about China and sometimes miss in Europe is the entrepreneurial spirit of our young people, their ambition and dynamism.

Our company has only been active in Beijing and Shanghai, two very market-dominated cities. This was an advantage. Land is purchased here in public auctions, in a transparent way. When you do real estate development outside Beijing and Shanghai it is good to have "guanxi" - good relations within the local government.

Country [China] needs to continue opening up and keep connecting. It needs to realize that the world has become one. The old concept of isolation, the idea that you can solve your problems on your own does not work anymore - neither in cultural, economic, nor political terms.

But the higher our standard of living, the higher our levels of education, the further people will look around. And we can see which level of openness other societies enjoy. We are no different - we too want more freedom. The question is: How much freedom will be allowed?

Many Chinese entrepreneurs are now donating for education; others support foundations in health care and research. None of us wants to be the richest guy in the cemetery.

When we started out, we were among the first. Beijing had no and Shanghai had very few large buildings. At that time, it was all about building, building, building - and then selling, selling, selling. We were working like a manufacturer. Soon, however, we realized that land was running out in Beijing and Shanghai. So we started keeping our buildings, and managing and renting them out. We became landowners. That was the second act.

The question is not about whether it will work or not. It's how quickly we can pull it off. Structural change will happen. When economies grow, there comes a time when you cannot rely on investment alone. We had that. The return on investment is becoming less and less. So we have to change. The old model doesn't work anymore. It's a question of speed.