
2000s, The Real Abraham Lincoln: A Debate (2002), The Right of Secession Is Not the Right of Revolution
1860s, Cooper Union speech (1860)
Context: Some of you are for reviving the foreign slave trade; some for a Congressional Slave-Code for the Territories; some for Congress forbidding the Territories to prohibit Slavery within their limits; some for maintaining Slavery in the Territories through the judiciary; some for the "gur-reat pur-rinciple" that "if one man would enslave another, no third man should object," fantastically called "Popular Sovereignty"; but never a man among you is in favor of federal prohibition of slavery in federal territories, according to the practice of "our fathers who framed the Government under which we live." Not one of all your various plans can show a precedent or an advocate in the century within which our Government originated. Consider, then, whether your claim of conservatism for yourselves, and your charge or destructiveness against us, are based on the most clear and stable foundations.
2000s, The Real Abraham Lincoln: A Debate (2002), The Right of Secession Is Not the Right of Revolution
Both American and British abolitionists assumed that an end to slave imports would lead automatically to the amelioration and gradual abolition of slavery.
The Problem of Slavery in the Age of Revolution, 1770-1823, page 129. https://books.google.com/books?id=9lsvDwAAQBAJ&pg=PA129
2000s, The Real Abraham Lincoln: A Debate (2002), The Lincoln-Douglas Debates
2000s, The Real Abraham Lincoln: A Debate (2002), The Right of Secession Is Not the Right of Revolution
"Slavery and Torture" http://andrewsullivan.theatlantic.com/the_daily_dish/2007/02/slavery_and_tor.html, The Daily Dish (23 February 2007)
Context: Torture was necessary to maintain slavery. It was integral to slavery. You cannot have slavery without some torture or the threat of torture; and you cannot have torture without slavery. You cannot imprison a free man for ever unless you have broken him; and you can only forcibly break a man's soul by torturing it out of him. Slavery dehumanizes; torture dehumanizes in exactly the same way. The torture of human beings who have no freedom and no recourse to the courts is slavery.
Source: 1900s, Up From Slavery (1901), Chapter I: A Slave Among Slaves
Source: A Way to Be Free: The Autobiography of Robert LeFevre, Volume II, (1999), p. 319
As quoted in His Brother's Blood: Speeches and Writings, 1838–64 https://books.google.com/books?id=qMEv8DNXVbIC&pg=PA170 (2004), edited by William Frederick Moore and Jane Ann Moore, p. 170
1850s, The Fanaticism of the Democratic Party (February 1859)
James M. McPherson. Battle Cry of Freedom http://historynewsnetwork.org/blog/153655 (1988) p. 214
1980s