“Any different policy in regard to the colored man, deprives us of his help, and this is more than we can bear. We can not spare the hundred and forty or fifty thousand now serving us as soldiers, seamen, and laborers. This is not a question of sentiment or taste, but one of physical force which may be measured and estimated as horse-power and Steam-power are measured and estimated. Keep it and you can save the Union. Throw it away, and the Union goes with it.”
—Abraham Lincoln, unfinished letter to Isaac M. Schemerhorn, Sept. 12, 1864