I would caution against fueling cheap populism. First of all, every German who has spent a vacation in Greece knows that the standard of living there isn't higher than it is in Germany. Second, Greece is paying a high price for European assistance.

I can't think of many other laws we might need. For now, though, we'll be talking to German Muslims over issues of coexistence.

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.

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.

Reliability is the precondition for trust.

Emmanuel Macron wants to see changes in France and we support him in that. Macron has proven his courage by leading an election campaign friendly to Europe and reform against the majority opinion of the Socialist Party.

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.