" Matt, I saw a man with his face blown off and no mouth to scream with, and yet he screamed and could not die. I saw two brothers, and one was in blue and one was in grey, and I will not tell you which one took his saber and ran it through the other. Oh God, it was brother against brother, Cain and Abel all over again. And I was turned into Cain. What would God have to do with a nation where brothers can turn against each other with such brutality? "

― Madeleine L'Engle , A Swiftly Tilting Planet (Time Quintet, #3)