“Heartfield was not there. It took at least ten minutes, and then he suddenly surfaced. His entire body was shivering. One could sense his agitation, and he was quickly asked: ‘Johnny, where have you come from? Where have you come from? Where are you…?’ [John Heartfield replied] ‘I was at the battlefield. I had to see where it happened. I need this for my work…I had to experience this.’…He shivered over his entire body and he could barely speak from the distress of these experiences.”