The refugee crisis is a challenge for the whole of Europe, and Europe - it's a very fair point to say it's not just a security issue. It's also an economic issue.

The refugee crisis shows we can't be isolated from the world's geopolitical troubles.

Brexit is the other face of the refugee crisis - tensions that lead to stasis, external risks that lead to asymmetric shocks.

If people do not believe in Europe and in the euro area, it must be dismantled.

To avoid the trap of Europe fragmenting on the economy, security, and identity, we have to return to the original promises of the European project: peace, prosperity and freedom. We should have a real, adult, democratic debate about the Europe we want.

De facto, you have a multi-speed Europe. You look at the Schengen, you look at the euro zone, all this kind of cooperations, you have a multi-speed Europe.