The natives of England are closing their doors to relationships with Asians and Africans or, for that matter, Turks and Spaniards. While the Africans and Asians on their part are increasingly closing their doors too and resentment at both sides is increasing. This trend can be dangerous. It can lead, sooner or later, to violence - even in this country, which is traditionally an opponent of violence.

The heart of assimilation process of absorbing minorities lies in the self-image of a nation. There are, as you will know, big differences for instance between the self-image of the French and the English. And the Germans, in accordance with their rather chequered history, had at least in the past very little capacity for absorbing minorities.

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.

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.

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.

Perhaps I should say that in general there are three solutions to such a situation. I mean not only in Holland, but everywhere where there are minority groups: in America, in Vietnam with the Chinese. Everywhere there is the same problem. But there are fundamentally three, actually only two possible solutions. A possible solution is that the despised minority is able to establish its own state somewhere else. The other solution is a higher or lesser degree of assimilation. And the third possibility, which is not a solution at all, is the permanence of the tension and conflict over time.

The integration in Germany was made easier by the fact that I am probably of the third generation. So I have undergone a process of assimilation, of Jews into German society.I lived as a child in Germany, the feeling of being surrounded by people of whom the majority had very strong anti-Semitic sentiments. But there was one very odd thing in the whole milieu in which I lived: no one accepted the stigmatization. It is quite difficult. No one, my father for instance, would ever take it seriously. He would regard anti-Semites as people of no education.