The war, he warned them, was remaking the world. ‘It is the deluge, it is a convulsion of Nature . . . bringing unheard-of changes in the social and industrial fabric. It is a cyclone which is tearing up by the roots the ornamental plants of modern society . . . It is an earthquake which is upheaving the very rocks of European life. It is one of those seismic disturbances in which nations leap forward or fall backward generations in a single bound.’