Islam developed in opposition to orthodox Christianity from the very start, and it considers itself superior to Christianity. So far, it has only been tolerant in places where it is in the minority.

Europe's experiment with multiculturalism, or the side-by-side existence of different cultures, has failed throughout the continent. Integration requires a minimum basis of shared values, that is, a culture of mutual tolerance and respect - in other words, what constitutes the heart of European culture.

The fundamental issue, when it comes to Europe's future, will be whether and how we manage to transfer the ideals that once made Europe great - especially its Christian roots - into today's changed world. No one wants to return to the Middle Ages.

A Europe that qualifies its own values is not attractive in the eyes of Muslims. Europe must conduct itself as a strong partner, both intellectually and spiritually, and it must be convinced of its own advantages. This is the only way we will gain respect.

Suicide attacks are the actions of losers who have nothing left to lose. In this case, Islam serves as a mask, a cover for desperation and nihilism, but not for religion.

One unanswered question is whether a Euro-Islam that combines Islam with democracy will be possible in the future. We mustn't confuse desire with reality.

The conflict with Islam has, after all, existed throughout European history.