But the projects with which the architects of Russian proletarian architecture present us are not only based on pure imagination, but their construct… - Theo van Doesburg

The development of plastic art is determined by the will to visualize. Art of the past represented the subjective vision of 'naturalistic relationships'. Neoplasticism embodies a subjective vision of 'plastic' relationships.. .Pure thought, which does not signify a concept derived from natural phenomena but which is contained in numbers, measures, relationships and abstract lines, is revealed conceptually (as Reason) by Chinese, Greek and German philosophy, and aesthetically by contemporary Neoplasticism [= De Stijl.

The work of art should be entirely conceived and formed by the mind before its execution. It should receive nothing from Nature’s formal properties or from sensuality or sentimentality.. .The picture should be constructed entirely from purely plastic elements, that is to say, planes and colours. A pictorial element has no other significance than 'itself', and therefore the picture has no other significance than 'itself'.

Perhaps it was his return to Paris [In June 1919 Piet Mondrian returned to Paris] that was needed to provide him with fresh new possibilities in his work. Invigoration. His most recent work is without composition. The division of the picture plane is modular. That means ordinary rectangles, all the same size. The only contrast is in the colour. In my view, this runs counter to his theory concerning the abolition of position and dimension. This is in effect equality of position and dimension.