I've read Lincoln's memoirs too. Lincoln's first priority was preserving the Union. His next priority was ending slavery. But, it wasn't all Lincoln. Every person who took a role in the civil war on either side had their reasons. They weren't all the same ones."Lincoln’s decision to fight rather than to let the Southern states secede was not based on his feelings towards slavery. Rather, he felt it was his sacred duty as President of the United States to preserve the Union at all costs. His first inaugural address was an appeal to the rebellious states, seven of which had already seceded, to rejoin the nation. His first draft of the speech ended with an ominous message: "Shall it be peace, or the sword?" "