..into this chaos [after the Bolshevik' revolution] came suprematism extolling the square [referring to the Squares of Malevich] as the very source o… - El Lissitzky

[I] Went to Germany to study there and graduated from the architecture faculty in Darmstadt in 1914. I studied art during my trips through Europe; went to Paris. In the summer of 1912 I traveled more than 1200 km in Italy on foot, learning and drawing. In 1912 my works were accepted for the first time at the large exhibition in Petersburg. From 1915 in I lived in Moscow, exhibiting each year.

The short step then required to complete the stride consists in recognition of the fact that a contre-relief is an architectonic structure, but the slightest deviation from the plumb-line of economy leads into a blind alley. The same fate must also overtake the architecture of cubist contre-relief.. .By taking these elements FROM THEM for itself it wants to become equally entitled to take its place alongside them as a new creation. The reference is to the narrow technical discoveries for example the submarine, the aeroplane, the motors and dynamos of every kind of motive power in each part of a battle-ship. Contre-relief is instinctively aware of their legitimate origin their economy of form and their realism of treatment.

PROUN is understood as the creative construction of form (based on the mastery of space) assisted by economic construction of the applied material. The goal of PROUN is progressive movement on the way to concrete creation, and not the substantiation, explanation, or promotion of life.