" An aeroplane booms overhead. We follow its evolutions with our faces skyward, our necks twisted, our eyes watering at the piercing brightness of the sky. Lamuse declares to me, when we have brought our gaze back to earth, “Those machines ’ll never become practical, never.”

“How can you say that? Look at the progress they’ve made already, and the speed of it.”

“Yes, but they’ll stop there. They’ll never do any better, never. "

― Henri Barbusse , Under Fire