Secession belongs to a different class of remedies. It is to be justified upon the basis that the States are Sovereign. There was a time when none denied it. I hope the time may come again, when a better comprehension of the theory of our Government, and the inalienable rights of the people of the States, will prevent any one from denying that each State is a Sovereign, and thus may reclaim the grants which it has made to any agent whomsoever.

The Life and Public Services of Each, with the Military Career and Death of the Latter (ed. 1856)