Let no one ever, from henceforth say one word in any way countenancing war. It is dangerous even to speak of how here and there the individual may gain some hardship of soul by it. For war is hell, and those who institute it are criminals. Were there even anything to say for it, it should not be said; for its spiritual disasters far outweigh any of its advantages.
As quoted by Robert Nichols in his introduction to The Counter-Attack and Other Poems (1918)