"At the Aubette, Sophie Taeuber executed reliefs of a simple, clear rhythm, in the purest Neo-Plastic tradition; Arp drew great forms with ample, flowing lines, which were perhaps figures, hair, or gestures, or lamentations. Van Doesburg accomplished his finest works here: a dynamic room entirely in diagonals , and another static room in horizontal and vertical plane-reliefs. Of all these there remain only photographic reminiscences."
January 1, 1970
https://en.wikiquote.org/wiki/Theo_van_Doesburg