“Never forget, political, economic and religious institutions can be destroyed and rebuilt by men. The death of our race will be eternal.”

The Three Sources and Three Constituent Parts of Marxism (March 1913)
1910s

American Communications Association v. Douds, 339 U.S. 382, 438 (1950)
Judicial opinions

"The Sport of God", speech accepting the Union Medal of the Union Theological Seminary (7 September 2005), as quoted Moyers on Democracy (2008), p. 375
Context: Bullies — political bullies, economic bullies, and religious bullies — cannot be appeased; they have to be opposed with courage, clarity, and conviction. This is never easy. These true believers don't fight fair. Robert's Rules of Order is not one of their holy texts.

and hence also man's relations with himself and with nature
Source: History and Class Consciousness (1968), pp. 47-48

1950s, Address at the Philadelphia Convention Hall (1956)
Context: So it is that the laws most binding us as a people are laws of the spirit—proclaimed in church and synagogue and mosque. These are the laws that truly declare the eternal equality of all men, of all races, before the man-made laws of our land. And we are profoundly aware that—in the world—we can claim the trust of hundreds of millions of people, across Africa and Asia—only as we ourselves hold high the banner of justice for all.

Reply in the Senate to William H. Seward (29 February 1860), Senate Chamber, U.S. Capitol. As quoted in The Papers of Jefferson Davis, Volume 6, pp. 277–84. Transcribed from the Congressional Globe, 36th Congress, 1st Session, pp. 916–18.
1860s

Source: Anarcho-Syndicalism (1938), Ch. 1 "Anarchism: Its Aims and Purposes"
Context: Anarchism is a definite intellectual current in the life of our times, whose adherents advocate the abolition of economic monopolies and of all political and social coercive institutions within society. In place of the present capitalistic economic order Anarchists would have a free association of all productive forces based upon co-operative labour, which would have as its sole purpose the satisfying of the necessary requirements of every member of society, and would no longer have in view the special interest of privileged minorities within the social union.
In place of the present state organisation with their lifeless machinery of political and bureaucratic institutions Anarchists desire a federation of free communities which shall be bound to one another by their common economic and social interest and shall arrange their affairs by mutual agreement and free contract.

1910s, Address to the Knights of Columbus (1915)
Context: One of the most important things to secure for him is the right to hold and to express the religious views that best meet his own soul needs. Any political movement directed against anybody of our fellow- citizens because of their religious creed is a grave offense against American principles and American institutions. It is a wicked thing either to support or to oppose a man because of the creed he professes. This applies to Jew and Gentile, to Catholic and Protestant, and to the man who would be regarded as unorthodox by all of them alike. Political movements directed against men because of their religious belief, and intended to prevent men of that creed from holding office, have never accomplished anything but harm. This was true in the days of the ‘Know-Nothing’ and Native-American parties in the middle of the last century; and it is just as true to-day. Such a movement directly contravenes the spirit of the Constitution itself. Washington and his associates believed that it was essential to the existence of this Republic that there should never be any union of Church and State; and such union is partially accomplished wherever a given creed is aided by the State or when any public servant is elected or defeated because of his creed. The Constitution explicitly forbids the requiring of any religious test as a qualification for holding office. To impose such a test by popular vote is as bad as to impose it by law. To vote either for or against a man because of his creed is to impose upon him a religious test and is a clear violation of the spirit of the Constitution.

Source: "Varieties of Moral Discourse: Prophetic, Narrative, Ethical and Policy", p. 55