The artist of today, if he doesn’t want to evade the issues, or become an empty shell, must choose between technology and service in the class war. Either way, he must give up ‘pure art.’ Either he joins the ranks of architects, engineers and ad men whom the industrial powers employ and the world exploits, or he becomes a depicter and critic who critiques the face of our time, becoming a propagandist and defender of revolutionary ideas and of their supporters in the army of the oppressed, those who struggle for their just share of the world’s resources, and for a meaningful social order.
— George Grosz, Art is in Danger! (1925)
"Plus ça change, plus c’est la même chose."
[translation: “The more things change, the more things stay the same.”]