“III. We think you are unduly influenced by the counsels, the representations, the menaces, of certain fossil politicians hailing from the Border Slave States. Knowing well that the heartily, unconditionally loyal portion of the White citizens of those States do not expect nor desire chat Slavery shall be upheld to the prejudice of the Union--(for the truth of which we appeal not only to every Republican residing in those States, but to such eminent loyalists as H. Winter Davis, Parson Brownlow, the Union Central Committee of Baltimore, and to The Nashville Union)--we ask you to consider that Slavery is everywhere the inciting cause and sustaining base of treason: the most slaveholding sections of Maryland and Delaware being this day, though under the Union flag, in full sympathy with the Rebellion, while the Free-Labor portions of Tennessee and of Texas, though writhing under the bloody heel of Treason, are unconquerably loyal to the Union. So emphatically is this the case, that a most intelligent Union banker of Baltimore recently avowed his confident belief that a majority of the present Legislature of Maryland, though elected as and still professing to be Unionists, are at heart desirous of the triumph of the Jeff. Davis conspiracy; and when asked how they could be won back to loyalty, replied "only by the complete Abolition of Slavery." It seems to us the most obvious truth, that whatever strengthens or fortifies Slavery in the Border States strengthens also Treason, and drives home the wedge intended to divide the Union. Had you from the first refused to recognize in those States, as here, any other than unconditional loyalty--that which stands for the Union, whatever may become of Slavery, those States would have been, and would be, far more helpful and less troublesome to the defenders of the Union than they have been, or now are.”
1860s, The Prayer of the Twenty Millions (1862)
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Horace Greeley 18
American politician and publisher 1811–1872Related quotes

Address to the Citizens of Concord, New Hampshire (4 July 1863).

Therefore, we, citizens of the United States, and the oppressed people who, by a recent decision of the Supreme' Court, are declared to have no rights which the white man is bound to respect, together with all other people degraded by the laws thereof, do, for the time being, ordain and establish for ourselves the following Provisional Constitution and Ordinances, the better to protect our persons, property, lives, and liberties, and to govern our actions.
Preamble.
Provisional Constitution and Ordinances (1858)

1850s, The House Divided speech (1858)

Preamble.
Provisional Constitution and Ordinances (1858)

2000s, The Real Abraham Lincoln: A Debate (2002), The South was a Closed Society
" What Is Living and What Is Dead in Social Democracy? http://www.nybooks.com/articles/2009/12/17/what-is-living-and-what-is-dead-in-social-democrac/" (2009)

1860s, Oration at Ravenna, Ohio (1865)

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.