"Save the Union"

"My paramount objective in this struggle is to save the Union, and is not either to save or destroy slavery. If I could save the Union without freeing any slave I would do it; and if I could save it by freeing some and leaving others alone I would also do that. What I do about slavery, and the colored race, I do because I believe it helps to save the Union."

August 22, 1862, Lincoln (carta ao editor Horace Greeley)