How will the exit affect thousands of British pensioners living in Portugal or Spain who will lose their access to the welfare and health systems? Fifty-three free-trade agreements, which were negotiated by the EU on behalf of all Member States, are also hanging in the balance for the UK.

The good thing about the European Union is that the joint project ultimately benefits all Member States and not just a few.

The Turks know that if they want to join the EU, then they must respect our rules. We are a union of beliefs, not a bunch of squawking chickens. But if we continue talks with Erdogan, that doesn't mean we have to bow down to him.

Many in Germany are saying that Macron should be helped. That's also how I see it. But Germany cannot solve France's problems. The French president and his government will have to seriously knuckle down in order to pull France out of its slump.

With their charm and legendary sense of humor, the British directly or indirectly paved the way for a large number of European compromises.

The position of EU commissioner for economic and monetary affairs could be combined with the office of Euro Group chairman. That job would be a great challenge for anyone who assumed it. On the one hand, he would have to make proposals. On the other hand, he would have to negotiate compromises with his European counterparts.

For my generation, the monetary union has always been about forging peace.