https://cdnc.ucr.edu/cgi-bin/cdnc?a=d&d=SDU18681204.2.3
"
The greatest efforts made by the defeated insurgents since the close of the war have been to promulgate the idea that the cause of liberty, justice, humanity, equality, and all the calendar of the virtues of freedom, suffered violence and wrong when the effort for southern independence failed. This is, of course, intended as a species of political cant, whereby the crime of treason might be covered with a counterfeit varnish of patriotism, so that the precipitators of the rebellion might go down in history hand in hand with the defenders of the government, thus wiping out with their own hands their own stains; a species of self-forgiveness amazing in its effrontery, when it is considered that life and property—justly forfeited by the laws of the country, of war, and of nations, through the magnanimity of the government and people—was not exacted from them."
GEO. H. THOMAS, Major General U. S. A., Commanding
https://www.encyclopediavirginia.org/mosby_john_singleton_1833-1916
In a letter of 1894 he insisted, "
I always understood that we went to War on account of the thing we quarreled with the North about. I never heard of any other cause of quarrel than slavery." As late as 1902 he mused, "
in retrospect slavery seems such a monstrous thing that some are now trying to prove that slavery was not the cause of the war."
John Singleton Mosby, Lieutenant Colonel, 43rd Virginia Partisan Rangers