Theo van Doesburg

"Art has poisoned our life. Aesthetics has infected everyone.. .If one chooses a typewriter or a sewing machine in the living room, the housewife say: 'Please take it away; it destroys the harmony of t…"

"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 'nat…"

"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,…"

"Had optical perception not evolved into something more than sensory perception, into super-sensory perception, then the present period would never have had the courage to discover the spiritual in mat…"

"The new architecture has suppressed monotonous repetition and destroyed the equality of two symmetrical halves. It does not allow for continuous repetition. A block of houses is as much a whole as an …"

"Since all preceding schools of painting have proved that the spirit of beauty does not lie in nature but in the 'I', now that painting in all its various expressions from Giotto to Cézanne has demonst…"

"I would like to offer an illustration. Imagine a house which is well designed from a material or practical point of view .. .Apart from these physio-functional demands, there are also psycho-functiona…"

"After having passed through the various phases of plastic creation I have arrived at the creation of 'universal forms' through constructing upon an arithmetical basis with the pure elements of paintin…"