"With a democratic society, the concept of multiculturalism is difficult to reconcile. Maybe in a very long term. But if you ask, where multicultural societies have so far worked, you can get very quickly to the conclusion that they only work there peacefully where there is a strong authoritarian state there. So, it was a mistake that we picked up at the beginning of the 60's guest workers from foreign cultures into the country. There is still no multicultural society [in the USA] either, but perhaps one day there will be. Singapore is a good example, but the cultures living there all speak English and the political system is based on authority."