“How can America be in a position to assimilate its many races and to select intelligently its future immigrants unless it has a clear understanding of each race, a clear comprehension of its ideals and achievements and of its contributive relation to its own development? We have tried the haphazard method. We concentrated races indiscriminately in cities, and the result was colonies and ghettos. We dumped them into industries, and got immigrant slums and "dagos" and "hunkies" and "kikes". We tried to shut them out, and could think of nothing better to accomplish this than a literacy test. We set the beauty-loving Italian digging ditches and put the Greek in factories, and in our negligence we wasted both.”

White Man's Bible (1983)
White Man's Bible (1983)

The small god in Ch. 44 : the visitor
The Visitor (2002)
Context: Each race creates its own devils. You had so many that they specialized. Devils of racial hatred, devils of greed and violence. Devils who killed their own people in orgies of blood. Devils who bombed clinics, devils who bombed school buses, devils who bombed other devils. I got to know every one of them by name. As soon as I arrived, I sent my monsters out to kill them all. They had tarnished my reputation, and though I have lavished much care on mankind, vengeance is mine.

Source: Stranger in a Strange Land

p, 125
Accent on Form: An Anticipation of the Science of Tomorrow (1955)

1920s, Ordered Liberty and World Peace (1924)
Context: To continue to be independent we must continue to be whole-hearted American. We must direct our policies and lay our course with the sole consideration of serving our own people. We cannot become the partisans of one nation, or the opponents of another. Our domestic affairs should be entirely free from foreign interference, whether such attempt be made by those who are without or within our own territory. America is a large country. It is a tolerant country. It has room within its borders for many races and many creeds. But it has no room for those who would place the interests of some other nation above the interests of our own nation.

What is Americanization? (1919)

"Introduction", item 1
Industrial Society and Its Future (1995)

Presidential campaign (April 12, 2015 – 2016), (July 28, 2016)

1910s, Address to the Knights of Columbus (1915)
Context: The foreign-born population of this country must be an Americanized population. No other kind can fight the battles of America either in war or peace. It must talk the language of its native-born fellow-citizens; it must possess American citizenship and American ideals. It must stand firm by its oath of allegiance in word and deed and must show that in very fact it has renounced allegiance to every prince, potentate, or foreign government. It must be maintained on an American standard of living so as to prevent labor disturbances in important plants and at critical times. None of these objects can be secured as long as we have immigrant colonies, ghettos, and immigrant sections, and above all they cannot be assured so long as we consider the immigrant only as an industrial asset. The immigrant must not be allowed to drift or to be put at the mercy of the exploiter. Our object is not to imitate one of the older racial types, but to maintain a new American type and then to secure loyalty to this type. We cannot secure such loyalty unless we make this a country where men shall feel that they have justice and also where they shall feel that they are required to perform the duties imposed upon them. The policy of 'Let alone' which we have hitherto pursued is thoroughly vicious from two standpoints. By this policy we have permitted the immigrants, and too often the native-born laborers as well, to suffer injustice. Moreover, by this policy we have failed to impress upon the immigrant and upon the native-born as well that they are expected to do justice as well as to receive justice, that they are expected to be heartily and actively and single-mindedly loyal to the flag no less than to benefit by living under it.