Composition allows the artist the greatest possible freedom, so that his subjectivity can express itself, to a certain degree, for as long as needed. - Piet Mondrian

The important task of all art is to destroy the static equilibrium by establishing a dynamic one. Non-figurative art demands an attempt of what is a consequence of this task, the destruction of particular form and the construction of a rhythm of mutual relations, of mutual forms, or free lines.. ..the law of the denaturalization of matter is of fundamental importance. In painting, the primary color that is as pure as possible realizes this abstraction of natural color.

Gradually I became aware [c. 1914-1918] that Cubism did not accept the logical consequences of its own discoveries; it was not developing abstraction towards its ultimate goal: the expression of pure reality.

..reality reveals itself by substantial, palpable forms, accumulated or dispersed in empty space.. ..these forms are part of that space and.. ..the space between them appears as form, a fact which evidences the unity of form and space.