“The Sabbath, perhaps the most important labour legislation next to the abolition of slavery, is a Hebrew institution.”

1830s, Illinois House Journal (1837)

Source: The Limits To Capital (2006 VERSO Edition), Chapter 12, Production Of Spatial Configurations, p. 385

1870s, Third State of the Union Address (1871)
Context: It is a subject for regret that the reforms in this direction which were voluntarily promised by the statesmen of Spain have not been carried out in its West India colonies. The laws and regulations for the apparent abolition of slavery in Cuba and Porto Rico leave most of the laborers in bondage, with no hope of release until their lives become a burden to their employers.

Richard M. Burton, ‎Bo Eriksen, ‎Dorthe Døjbak Håkonsson (2006). Organization Design: The Evolving State-of-the-Art. p. 28

John Brown and the Principle of Nonresistance http://teachingamericanhistory.org/library/index.asp?document=569 (16 December 1859)
Context: We have a natural right, therefore, to seek the abolition of slavery throughout the globe. It is our special duty to make Massachusetts free soil, so that the moment the fugitive slave stands upon it, he shall take his place in the ranks of the free. God commands us to "hide the outcast, and bewray not him that wandereth." I say, LET THE WILL OF GOD BE DONE! That is "the head and front" of my "fanaticism"! That is the extent of my "infidelity"! That comprehends all of my "treason"! THE WILL OF GOD BE DONE!

Source: 1990s, For Cause and Comrades: Why Men Fought in the Civil War (1997), pp. 109–110
Context: It would be wrong, however, to assume that Confederate soldiers were constantly preoccupied with this matter. In fact, only 20 percent of the sample of 429 Southern soldiers explicitly voiced proslavery convictions in their letters or diaries. As one might expect, a much higher percentage of soldiers from slaveholding families than from nonslaveholding families expressed such a purpose: 33 percent, compared with 12 percent. Ironically, the proportion of Union soldiers who wrote about the slavery question was greater, as the next chapter will show. There is a ready explanation for this apparent paradox. Emancipation was a salient issue for Union soldiers because it was controversial. Slavery was less salient for most Confederate soldiers because it was not controversial. They took slavery for granted as one of the Southern 'rights' and institutions for which they fought, and did not feel compelled to discuss it. Although only 20 percent of the soldiers avowed explicit proslavery purposes in their letters and diaries, none at all dissented from that view. But even those who owned slaves and fought consciously to defend the institution preferred to discourse upon liberty, rights, and the horrors of subjugation.

1880s, Personal Memoirs of General U. S. Grant (1885)
Context: The winter of 1860-1 will be remembered by middle-aged people of to-day as one of great excitement. South Carolina promptly seceded after the result of the Presidential election was known. Other Southern States proposed to follow. In some of them the Union sentiment was so strong that it had to be suppressed by force. Maryland, Delaware, Kentucky and Missouri, all Slave States, failed to pass ordinances of secession; but they were all represented in the so-called congress of the so-called Confederate States. The Governor and Lieutenant-Governor of Missouri, in 1861, Jackson and Reynolds, were both supporters of the rebellion and took refuge with the enemy. The governor soon died, and the lieutenant-governor assumed his office; issued proclamations as governor of the State; was recognized as such by the Confederate Government, and continued his pretensions until the collapse of the rebellion. The South claimed the sovereignty of States, but claimed the right to coerce into their confederation such States as they wanted, that is, all the States where slavery existed. They did not seem to think this course inconsistent. The fact is, the Southern slave-owners believed that, in some way, the ownership of slaves conferred a sort of patent of nobility—a right to govern independent of the interest or wishes of those who did not hold such property. They convinced themselves, first, of the divine origin of the institution and, next, that that particular institution was not safe in the hands of any body of legislators but themselves.

Ch. 16.

A Summary View of the Rights of British America http://alexpeak.com/twr/jefferson/#1784 (July 1774)
1770s
Context: For the most trifling reasons, and sometimes for no conceivable reason at all, his majesty has rejected laws of the most salutary tendency. The abolition of domestic slavery is the great object of desire in those colonies where it was unhappily introduced in their infant state. But previous to the infranchisement of the slaves we have, it is necessary to exclude all further importations from Africa. Yet our repeated attempts to effect this by prohibitions, and by imposing duties which might amount to a prohibition, have been hitherto defeated by his majesty’s negative: thus preferring the immediate advantages of a few British corsairs to the lasting interests of the American states, and to the rights of human nature deeply wounded by this infamous practice.

1880s, Inaugural address (1881)
Context: The will of the nation, speaking with the voice of battle and through the amended Constitution, has fulfilled the great promise of 1776 by proclaiming 'liberty throughout the land to all the inhabitants thereof.' The elevation of the negro race from slavery to the full rights of citizenship is the most important political change we have known since the adoption of the Constitution of 1787. NO thoughtful man can fail to appreciate its beneficent effect upon our institutions and people. It has freed us from the perpetual danger of war and dissolution. It has added immensely to the moral and industrial forces of our people. It has liberated the master as well as the slave from a relation which wronged and enfeebled both. It has surrendered to their own guardianship the manhood of more than 5,000,000 people, and has opened to each one of them a career of freedom and usefulness.