The goal of European unification can only be achieved if everyone participates, perhaps with exceptions in some areas. Not all countries are part of monetary union, and not all are in the Schengen area. But the fundamental goal should be to keep everyone on board.

When it comes to training imams, one needs a partner. But if we want the mosques to preach peaceful coexistence, we will have to do something about it. One goal of the conference is to find a partner for the training of imams and teachers of Islam in schools.

I don't want to change Islam, but if there is to be a European Islam, it must incorporate European values.

We will not be able to meet the challenges of integration and the threats posed by international terrorism. If we want to prevent attacks, we'll need more information and better integration.

I would caution against fueling cheap populism. First of all, every German who has spent a vacation in Greece knows that the standard of living there isn't higher than it is in Germany. Second, Greece is paying a high price for European assistance.

I suggested that countries with tighter finances think about such a [fuel] tax. We don't have the time at the moment for months of discussion.

Germany has always stood for an E.U. of the 27 countries. But in light of Britain's continued resistance to further integration steps, as we saw with the fiscal pact, there are limits to my optimism in this regard. It's quite possible that we will have to create the new institutions for the euro zone first.