Primary responsibility for Brexit lies with British conservatives, who took an entire continent hostage.

Donald Trump is betraying everything that made America great: tolerance, democratic institutions and respect for the individual. In that sense, Trump is the most un-American U.S. president that the country has had in a long time.

Solidarity is the fundamental idea of European cooperation. If a country feels itself to be militarily threatened and calls for soldiers, weapons and sanctions, then that's what it gets. When governments say they need money from the structural funds to stabilize their economy, that's what they get. But you can't cherry pick solidarity.

A joint European army is a very far-reaching proposal and it would be difficult to implement. Such initiatives are nevertheless needed.

I would never attack somebody only because they belong to a different party.

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.

The question of societal fairness is always pertinent.