Let us summarize these three points more concisely: - El Lissitzky

We have named PROUN [the art, stepping over from painting to architecture] a station on the path to the construction of the new form.. .From being a simple depicter the artist becomes a creator (builder) of forms for a new world — the world of objectivity. This does not mean the creation of a rivalry with the engineer. Art has not yet crossed paths with science.

In America the architect has a direct and continuing relationship with technology. Perhaps this is why he does not ask more from technology than it can offer. In our country [Russia] it is still impossible to have such urban complexes as are found in Paris, Chicago, or Berlin. It is through technology that we can build a bridge to all the most recent achievements, which is what made it possible for our country to pass directly from the hoe to the tractor without having to travel the long path of historical development. That is why we want to introduce the most modern methods of building and construction into our country — and why we see the works and designs of both the 'formalists' and the 'constructivists' as a radical experiment in the manipulation of construction.

During my stay in Germany in 1922 I collaborated with the writer Ehrenburg, on the Magazine 'Veshch' (Gegenstand) [= Object] (first pro-Soviet edition). [I] Took part in organizing the First Russian Art Exhibition 1922-23 in Berlin and Amsterdam. My works were purchased by European and American collectors and museums. The museum in New York acquired a 'Proun' from the Soviet Exhibition. At this time, in 1923, I contracted pulmonary tuberculosis.