" he resented Golz's orders, and the necessity for them. He resented them for what they could do to him and for what they could do to this old man. They were bad orders all right for those who would have to carry them out. And that is not the way to think, he told himself, and there is not you, and there are no people that things must not happen to. Neither you nor this old man is anything. You are instruments to do your duty. There are necessary orders that are no fault of yours and there is a bridge and that bridge can be the point on which the future of the human race can turn. As it can turn on anything that happens in this war. "

― Ernest Hemingway , For Whom the Bell Tolls