The plastic expression of space is inconceivable without light. Light and space complete one another. In architecture light represents an element of … - Theo van Doesburg

To be white, red, yellow, or black is to be a painter. Today it is not sufficient for the painter to think of colour; he should be colour, feed on colour and transform himself into painting. That is the essential thing. To feel like colour means to carry within oneself the entire range of colours, not as a treasure, but as a trust.

Dada is able to mobilize the optical and dimensional static viewpoint which keeps us imprisoned in our [three-dimensional] illusions. Thus it became possible to perceive the entire prism of the world instead of just one facet at a time. In this connection Dada is one of the strongest manifestations of the fourth dimension, transposed onto the subject.. ..Dada is 'yes-no', a bird on four legs, a ladder without steps, a square without angels. Dada possesses as many positives as negatives. To think that Dada simply means destruction is to misunderstand life, of which Dada is the expression.

True artistic experience is never passive, for the spectator is obliged to participate, as it were, in the continuous or discontinuous variations of proportions, positions, lines and planes. Moreover, he must see clearly how this play of repeated or non-repeated changes may give rise to a new harmony of relations which will constitute the unity of the work. Every part becomes organized into a whole with the other parts. All the parts contribute to the unity of the composition, none of them assuming a dominant place in the whole.