Debating the concept of race does not mean that I in any way regard this as a quarrel between neighbors over where they come from. I have perhaps said enough when I said the alternative to assimilation is that immigrant groups form their own state or go away for lack of acceptance. Why should it be less serious if quarrels and dissensions are socially related? After all, the quarrels and dissensions between Russia and America are also not racial. And yet they seem to me extremely dangerous.

Very often people who live in a ghetto accept some of the stigmatisation against them. I mention the case of a Japanese minority the Burakumin, which was pure Japanese in descent, but which was concerned with dirty work: leather work, cadavers, and some other things.There was a famous story of an old man who asked: 'Do you yourself believe you are the same as the Japanese?' And the outsider said: 'I do not know, we are dirty.' This kind of conscience was never there in the surroundings in which I lived. One always felt as someone whom could be proud of, being both German and Jewish.

I would like to remind you that both assimilation and integration apply to the working classes in the nineteenth century, at least in Britain and also Germany. Like most outsider groups compared with the establishment, the working classes were treated more or less with the same kind of stigmatization as immigrant groups are treated today.

Assimilation, a certain uniformity of conduct, is necessary in a multi-party state.This is not only a requirement to the established majority; it is also a requirement to the minorities themselves. Because, I repeat myself, a ghetto existence is not very nice.

Perhaps one could appoint three or four professional people specially concerned with the task of bridge building between the majority and the minority. Bridge building of this kind requires an effort from both sides. It's no good if the majority alone do it. The question is whether there is any response, whether people on the other side of the river also wish to try to build a bridge.

I have touched here on a problem that is masked if one speaks of racism. And that is the fact that the major differences between the established and outsiders group, which create tension and irritation, is not the form of the face or the skin color but the form of behavior: something learned. The form of behavior and feeling, of sentiment, is different in the immigrant groups from that of the established groups, and that may give rise to an enormous irritation.

The way one behaves and feels as a Dutchman and Dutchwoman is the result of a long development. It is by no means 'the natural way' or 'the human way' of behaving, it is a particular code of behavior which has developed over the years. And these people, the immigrant people, come from a group where different standards of conduct and behavior have developed. What clashes are these two standards of conduct and behavior.