“A just man stand's on the side of the right with such conviction, thát neither the passion of a mob, nor the violence of a despot can make him overstep the bounds of reason.”

Source: The God of the Machine (1943), p. 122

"Niagara Movement Speech" (1905) http://teachingamericanhistory.org/library/document/niagara-movement-speech/ <!--originally a portion of this was cited here to an Address to the Nation speech at Harpers Ferry, Virginia (16 August 1906); published in the New York Times on (20 August 1906) — but that does not correspond with the info at the link. -->
Context: The school system in the country districts of the South is a disgrace and in few towns and cities are Negro schools what they ought to be. We want the national government to step in and wipe out illiteracy in the South. Either the United States will destroy ignorance or ignorance will destroy the United States.
And when we call for education we mean real education. We believe in work. We ourselves are workers, but work is not necessarily education. Education is the development of power and ideal. We want our children trained as intelligent human beings should be, and we will fight for all time against any proposal to educate black boys and girls simply as servants and underlings, or simply for the use of other people. They have a right to know, to think, to aspire.
These are some of the chief things which we want. How shall we get them? By voting where we may vote, by persistent, unceasing agitation; by hammering at the truth, by sacrifice and work.
We do not believe in violence, neither in the despised violence of the raid nor the lauded violence of the soldier, nor the barbarous violence of the mob, but we do believe in John Brown, in that incarnate spirit of justice, that hatred of a lie, that willingness to sacrifice money, reputation, and life itself on the altar of right. And here on the scene of John Brown’s martyrdom we reconsecrate ourselves, our honor, our property to the final emancipation of the race which John Brown died to make free.
Our enemies, triumphant for the present, are fighting the stars in their courses. Justice and humanity must prevail.

§ 1
1780s, Memorial and Remonstrance Against Religious Assessments (1785)
Context: We hold it for a fundamental and undeniable truth, “that Religion or the duty which we owe to our Creator and the Manner of discharging it, can be directed only by reason and conviction, not by force or violence.” The Religion then of every man must be left to the conviction and conscience of every man; and it is the right of every man to exercise it as these may dictate. This right is in its nature an unalienable right. It is unalienable; because the opinions of men, depending only on the evidence contemplated by their own minds, cannot follow the dictates of other men: It is unalienable also; because what is here a right towards men, is a duty towards the Creator. It is the duty of every man to render to the Creator such homage, and such only, as he believes to be acceptable to him. This duty is precedent both in order of time and degree of obligation, to the claims of Civil Society. Before any man can be considered as a member of Civil Society, he must be considered as a subject of the Governor of the Universe: And if a member of Civil Society, who enters into any subordinate Association, must always do it with a reservation of his duty to the general authority; much more must every man who becomes a member of any particular Civil Society, do it with a saving of his allegiance to the Universal Sovereign. We maintain therefore that in matters of Religion, no man’s right is abridged by the institution of Civil Society, and that Religion is wholly exempt from its cognizance. True it is, that no other rule exists, by which any question which may divide a Society, can be ultimately determined, but the will of the majority; but it is also true, that the majority may trespass on the rights of the minority.

Introduction to the Critical Journal of Philosophy, cited in W. Kaufmann, Hegel (1966), p. 56

Reported as an inscription quoting Lincoln in an English college in The Baptist Teacher for Sunday-school Workers : Vol. 36 (August 1905), p. 483. The portion beginning with "stand with anybody..." is from the 16 October 1854 Peoria speech..
Posthumous attributions

Source: The Life of Reason: The Phases of Human Progress (1905-1906), Vol. III, Reason in Religion, Ch. VI

The Meaning of the Russian Revolution (1906) http://archive.org/stream/russianrevolutio00tols/russianrevolutio00tols_djvu.txt
Context: One might think that it must be quite clear to people not deprived of reason, that violence breeds violence; that the only means of deliverance from violence lies in not taking part in it. This method, one would think, is quite obvious. It is evident that a great majority of men can be enslaved by a small minority only if the enslaved themselves take part in their own enslavement. If people are enslaved, it is only because they either fight violence with violence or participate in violence for their own personal profit. Those who neither struggle against violence nor take part in it can no more be enslaved than water can be cut. They can be robbed, prevented from moving about, wounded or killed, but they cannot be enslaved: that is, made to act against their own reasonable will.

"Our Brother in Black", Seminary Magazine 2 (1889), pp. 137–39, as quoted in Report on Slavery and Racism in the History of the Southern Baptist Theological Seminary https://sbts-wordpress-uploads.s3.amazonaws.com/sbts/uploads/2018/12/Racism-and-the-Legacy-of-Slavery-Report-v4.pdf#page=6 (December 2018), by R. Albert Mohler, Jr., Southern Baptist Theological Seminary, p. 40