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-… - Theo van Doesburg

One must always paint in opposition to nature, and to one’s own 'mood'. To let oneself go is a weakness, a sort of hysterics. If you are full of red, choose a green or a blue; if you feel like yellow, choose grey or black. In this continuous opposition lies the entire secret of plastic creation.. .To create a great work of art demands self-mortification.

The plastic expression of space is inconceivable without light. Light and space complete one another. In architecture light represents an element of plastic expression – in fact, the most important one. An organic relationship between 'space' and 'material' is possible only with the aid of light. The highest achievements in architecture can be accomplished only if light also is treated as plastic form.

The complete and definitive work of art is created beyond one's individuality.. .The universal transcends such a level. Mere spontaneity has never created a work of art which possesses a lasting cultural value. The method leading to universal form is based upon calculations of measure and number.