“What shall be said, then, of those who insist upon ignoring the question of slavery as not involved in this deadly feud, and maintain that the only issue is, the support of the government and the preservation of the Union? Surely, they are "fools and blind"; for it is slaveholders alone who have conspired to seize the one, and overturn the other. As long as the enslavement of a single human being is sanctioned in the land, the curse of God will rest upon it.”

ஜாதி மதங்களைப் பாரோம் -
உயர் ஜன்மம்இத் தேசத்தில் எய்தின ராயின்
வேதிய ராயினும் ஒன்றே -
அன்றி வேறு குலத்தின ராயினும் ஒன்றே
As quoted in Freedom Fighters of India, Vol. 3, Lion M. G. Agrawal (2008), "Subramaniya Bharathi", p. 235

Ibn Maja, 2313 http://ahadith.co.uk/permalink-hadith-9685
Sunni Hadith

Douglass here quotes William Lloyd Garrison, who famously declared in the first issue of The Liberator: "I am in earnest — I will not equivocate — I will not excuse — I will not retreat a single inch — AND I WILL BE HEARD."
1850s, What to the Slave is the Fourth of July? (1852)
Context: I shall see, this day, and its popular characteristics, from the slave's point of view. Standing, there, identified with the American bondman, making his wrongs mine, I do not hesitate to declare, with all my soul, that the character and conduct of this nation never looked blacker to me than on this 4th of July! Whether we turn to the declarations of the past, or to the professions of the present, the conduct of the nation seems equally hideous and revolting. America is false to the past, false to the present, and solemnly binds herself to be false to the future. Standing with God and the crushed and bleeding slave on this occasion, I will, in the name of humanity which is outraged, in the name of liberty which is fettered, in the name of the constitution and the Bible, which are disregarded and trampled upon, dare to call in question and to denounce, with all the emphasis I can command, everything that serves to perpetuate slavery — the great sin and shame of America! "I will not equivocate; I will not excuse;" I will use the severest language I can command; and yet not one word shall escape me that any man, whose judgement is not blinded by prejudice, or who is not at heart a slaveholder, shall not confess to be right and just.

Speech to the 1900 Club at Grosvenor House, London (10 June 1936) on the Italo-Abyssinian War, quoted in The Times (11 June 1936), p. 10
Chancellor of the Exchequer

Source: Jesus Before Christianity: The Gospel of Liberation (1976), p. 57.

Writers at Work interview (1958)

John Knox as portrayed in Bothwell : A Tragedy (1874) Act I, Sc. 2.
Bothwell : A Tragedy (1874)
Context: Sins are sin-begotten, and their seed
Bred of itself and singly procreative;
Nor is God served with setting this to this
For evil evidence of several shame,
That one may say, Lo now! so many are they;
But if one, seeing with God-illumined eyes
In his full face the encountering face of sin,
Smite once the one high-fronted head, and slay,
His will we call good service. For myself,
If ye will make a counsellor of me,
I bid you set your hearts against one thing
To burn it up, and keep your hearts on fire,
Not seeking here a sign and there a sign,
Nor curious of all casual sufferances,
But steadfast to the undoing of that thing done
Whereof ye know the being, however it be,
And all the doing abominable of God.
Who questions with a snake if the snake sting?
Who reasons of the lightning if it burn?
While these things are, deadly will these things be;
And so the curse that comes of cursed faith.

1880s, Inaugural address (1881)

Fragmentary manuscript of a speech on free labor (17 September 1859?) http://quod.lib.umich.edu/l/lincoln/lincoln3/1:141?rgn=div1;view=fulltext; The Collected Works of Abraham Lincoln, ed. Roy P. Basler (1953), vol. 3, p. 463
1850s
Context: We know, Southern men declare that their slaves are better off than hired laborers amongst us. How little they know, whereof they speak! There is no permanent class of hired laborers amongst us. Twentyfive years ago, I was a hired laborer. The hired laborer of yesterday, labors on his own account to-day; and will hire others to labor for him to-morrow. Advancement — improvement in condition — is the order of things in a society of equals. As Labor is the common burthen of our race, so the effort of some to shift their share of the burthen on to the shoulders of others, is the great, durable, curse of the race. Originally a curse for transgression upon the whole race, when, as by slavery, it is concentrated on a part only, it becomes the double-refined curse of God upon his creatures.