You can consider this carved in stone: I rule out becoming Herman Van Rompuy's successor.

My friendship with Martin [Schulz], by contrast, is completely different in that it goes far beyond politics.

But anyone who believes that the eternal issue of war and peace in Europe has been permanently laid to rest could be making a monumental error. The demons haven't been banished; they are merely sleeping, as the wars in Bosnia and Kosovo have shown us.

Here in Brussels, we did everything to accommodate David Cameron's concerns. My collaborators and I personally spent countless days and nights negotiating an agreement that was fair toward the United Kingdom and toward the other 27 Member States. I was then very surprised to see that this settlement played no role whatsoever in the campaign in the United Kingdom. At the same time it is hardly surprising.

I note that many British MEPs belonging to the UK Independence Party (UKIP) have used all their time in Parliament to work against the institution of which they are members. I would not presume to advise them on what they should or should not do. However, since the UK could not leave the EU fast enough as far as they were concerned, I can imagine that they will not stay any longer than they have to.

It's important to recognize that we in Europe will either succeed together or fail together.

We must also take this opportunity to learn from the situation [of Brexit], just as we learned from the refugee and debt crises.