We need a comprehensive renewal of the nursing care system in Germany, and quickly. The two-tier medical system must be abolished. Patients with public health insurance are waiting months to be seen by a specialist doctor, while doctors increasingly give priority to privately insured patients. That's unacceptable. We also need an educational revolution. Medicine, nursing care, education: Germany is not a modern country when it comes to these three areas. We have to adapt our policies to the social reality. These are projects that can awaken Germany out of its torpor.

Businesses will only invest in Greece if three conditions are fulfilled. First, there must be a clear commitment to the euro. No businesses will invest if they have to fear that Greece will leave the euro zone at some point. Second, the Greek government must be prepared to work together with European institutions in order to restructure the country.

We need a big debate in society about how we are going to shape Europe and tame capitalism. A government must provide direction and make concrete proposals. It is one of Angela Merkel's biggest failings that she doesn't do this.

My worry is that Donald Trump may inspire copycats, also in Europe. That's why I hope Hillary Clinton wins.

I have friends in politics who really put the friendship to the test through their behavior.

There are certain reactions that you aren't allowed to show in Berlin, for example that you feel offended. If you do, the best-case scenario is a sympathetic article along the lines of: Nice guy, but he's not up to it. The alternative is to don a suit of armor and become cynical. But that's not healthy either: Cynicism is the worst characteristic a politician can have. That's why you have to have an internal balance in Berlin, so you can stay true to yourself. And I have that.

Many who have voted for the AfD, or who intend to do so, aren't doing so because they are dyed-in-the-wool enemies of democracy. Rather, they are desperate.