“The instinct to synthesize is a good one so long as it is concerned with elements that are capable of forming a whole. But today the man in the street is fed, morally as well as physically, on a mass of debris which has no resemblance to a nourishing diet. There is no method in this madness, which is the very negation of culture.”

142
Multitude: War and Democracy in the Age of Empire

1960s, Remarks at the signing of the Immigration Bill (1965)
Context: This bill says simply that from this day forth those wishing to immigrate to America shall be admitted on the basis of their skills and their close relationship to those already here. This is a simple test, and it is a fair test. Those who can contribute most to this country; to its growth, to its strength, to its spirit; will be the first that are admitted to this land. The fairness of this standard is so self-evident that we may well wonder that it has not always been applied. Yet the fact is that for over four decades the immigration policy of the United States has been twisted and has been distorted by the harsh injustice of the national origins quota system. Under that system the ability of new immigrants to come to America depended upon the country of their birth. Only 3 countries were allowed to supply 70 percent of all the immigrants. Families were kept apart because a husband or a wife or a child had been born in the wrong place. Men of needed skill and talent were denied entrance because they came from southern or eastern Europe or from one of the developing continents. This system violated the basic principle of American democracy; the principle that values and rewards each man on the basis of his merit as a man. It has been un-American in the highest sense, because it has been untrue to the faith that brought thousands to these shores even before we were a country. Today, with my signature, this system is abolished. We can now believe that it will never again shadow the gate to the American nation with the twin barriers of prejudice and privilege. Our beautiful America was built by a nation of strangers. From a hundred different places or more they have poured forth into an empty land, joining and blending in one mighty and irresistible tide. The land flourished because it was fed from so many sources; because it was nourished by so many cultures and traditions and peoples. And from this experience, almost unique in the history of nations, has come America's attitude toward the rest of the world. We, because of what we are, feel safer and stronger in a world as varied as the people who make it up; a world where no country rules another and all countries can deal with the basic problems of human dignity and deal with those problems in their own way. Now, under the monument which has welcomed so many to our shores, the American nation returns to the finest of its traditions today. The days of unlimited immigration are past. But those who do come will come because of what they are, and not because of the land from which they sprung.

Collaborations with others, Science Order, and Creativity (1987)

I am referring to the view that the “true” and the “given” is not that which is self-evident, but rather that which is “indubitable” or “incontestable,” which can be maintained against doubt and criticism.
Source: Das Ressentiment im Aufbau der Moralen (1912), L. Coser, trans. (1973), p. 67

The Psychology of the Unconscious (1943)

1920s, What I Believe (1925)

Source: One is A Crowd: Reflections of An Individualist (1952), pp. 36-37

Source: The Way Toward Health (1997), p. 259

Vol. I, p. 12
1980s, Letters to the Schools (1981, 1985)