I think we will have to spend more on defense, for infrastructure, for extension of the broadband network and also for domestic security.

It is clear to us that we will have to become more involved in our neighboring regions so that the migration pressures aren't so high there. Of course the budget negotiations will be difficult, as they always are.

History shows us a lot of things. It shows why the Lord's Prayer includes the supplication: "And lead us not into temptation." In my day, dissertations were still written by hand, or drummed out with a typewriter. In the past, you had to round up the literature, find the books and find the passages. Nowadays you click on Wikipedia or Google and you have everything you need. This probably makes it more difficult to resist temptation.

You cannot form a community of countries of different strength without a certain amount of equilibrium. That is reflected in, for example, the EU budget and the bailout programs. That is why there are net payers and net recipients in Europe. A community cannot exist if the stronger do not take responsibility for the weaker.

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.

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.

It has been clear for some time now that we have to do more for domestic and external security. I am prepared for that.