..a demand which will never be fulfilled as long as artists use individualistic means. 'Unity can only result from disciplining the means, for it is … - Theo van Doesburg

But the projects with which the architects of Russian proletarian architecture present us are not only based on pure imagination, but their construction would, if they were fitted for realization, entail enormous waste of space and materials. The dwelling complex 'Wolkenbügel' [architecture, designed by Lissitzky, with the help of [ w:Emil Roth - Swiss architect, 1924] (assuming that one could live here without either freezing or melting!), shaped like a 4, stands in a very un-constructive way on three legs in which the elevators are located. The latter take up as much space as would one or more skyscrapers. And these 'architects' are to teach the West what architecture is!

Marinetti's [leading Futurism founder and theorist] Tactilism can be seen as an instinctive effort in this direction [of the new architecture, according to Van Doesburg] even if it presents only the sensuous-tactile expression of space through using various materials. Picasso's earlier compositions in various materials also concerns us here. The Russian artists [ Tatlin and Lissitzky, both Constructivist artists] also appreciated the exterior quality of the plane, not only optical, but also in a tactile manner.. .Intuition already produced a foreknowledge of these new realms, but they can be established fully only by science.

We speak of concrete and not 'abstract painting', because we have finished with the period of research and speculative experience. In their search for purity artists were obliged to abstract from 'natural forms' in which the plastic elements were hidden, in order to eliminate natural forms and to replace them with 'artistic forms'. To-day the idea of 'artistic form' is as obsolete as the idea of 'natural form'. We establish the period of pure painting by constructing 'spiritual form'. Creative spirit becomes concrete.