Everything is expressed through RELATIONSHIPS.

All painting - the painting of the past as well as of the present - shows us that its essential plastic means were only line and color.

Observing sea, sky and stars, I sought to indicate their plastic function through a multiplicity of crossing verticals and horizontals. Impressed by the vastness of Nature, I was trying to express its expansion, rest and unity.

The relation of color and the relation of proportion are both based on the relation of position.

To approach the spiritual in art, one will make as little use as possible of reality, because reality is opposed to the spiritual.

Art on the contrary sought this harmony in practice [of art itself]. More and more in its creations it has given inwardness to that what surrounds us in nature, until, in Neo-Plasticism, nature is no longer dominant. This achievement of balance may prepare the way for the fulfillment of man and signal the end of (what we call) art.

Why should art continue to follow nature when every other field has left nature behind?