At the moment we are facing a whole collection of difficult to forecast developments from the situation in China and the oil-price crash to the worrying news from some banks in Europe and the US. All of that is linked: Worldwide company debt is high and there is a lot of money in circulation. That is why necessary structural reforms are not being made.

I don't want to change Islam, but if there is to be a European Islam, it must incorporate European values.

In China, it was always said that a double-digit rate of growth would be dangerous. Now, the country has a growth rate of 6.9 percent and suddenly that is supposed to be a catastrophe for the global economy.

About three million Muslims live in the country, but we have no relationship to our diverse Muslim society, despite the fact that it's an established part of our larger society. We need to build a stronger foundation for the relationship between Muslims and the state.

It is true that no member state can be required to make payments to others. But if countries want to offer voluntary assistance, as in the Greek case, this isn't only allowed, but it's also in Germany's interest. We all benefit by ensuring the stability of the euro zone.

Germany has always stood for an E.U. of the 27 countries. But in light of Britain's continued resistance to further integration steps, as we saw with the fiscal pact, there are limits to my optimism in this regard. It's quite possible that we will have to create the new institutions for the euro zone first.

Politics means competition, especially in senior positions. If you don't know that, you're not especially suited to politics.