" Our faces are neither paler nor more flushed than usual; they are not more tense nor more flabby - and yet they are changed. We feel that in our blood a contact has shot home. That is no figure of speech; it is fact. It is the front, the consciousness of the front, that makes this contact. The moment that the first shells whistle over and the air is rent with the explosions there is suddenly in our veins, in our hands, in our eyes a tense waiting, a watching, a heightening alertness, a strange sharpening of the senses. the body with one bound is in full readiness. "

― Erich Maria Remarque , All Quiet on the Western Front