“Blood grows hot, and blood is spilled. Thought is forced from old channels into confusion. Deception breeds and thrives. Confidence dies, and universal suspicion reigns. Each man feels an impulse to kill his neighbor, lest he be first killed by him. Revenge and retaliation follow. And all this … may be among honest men only. But this is not all. Every foul bird comes abroad, and every dirty reptile rises up. These add crime to confusion.”

— Abraham Lincoln, letter to the Missouri abolitionist Charles D. Drake, 1863