
Quote, c. 1921; from Lyubov' Popova, in 'Commentary on Drawings', trans. ed. James West, in Art Into Life: Russian Constructivism, 1914-1932; catalogue for exhibition Rizzoli, New York: 1990, p. 69 (Popova's original text, in the Manuscript Division, State Tretiakov Gallery, Moscow, f. 148, ed. khr. 17, 1. 4.)