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

If you follow nature you will not be able to vanquish the tragic in any real degree in your art... We must free ourselves from our attachment to the external, for only then do we transcend the tragic, and are enabled consciously to contemplate the repose which is within all things.

The surface of things gives enjoyment, their interiority gives life.

What is natural does not have to be a representation of something. I'm now working on a thing that is a reconstruction of a starry sky, and yet I'm making it without a given from nature. Someone who says he uses a theme from nature can be right, but also someone who says he uses nothing at all.

I don't want pictures, I want to find things out.

Vertical and horizontal lines are the expression of two opposing forces; they exist everywhere and dominate everything; their reciprocal action constitutes 'life'. I recognized that the equilibrium of any particular aspect of nature rests on the equivalence of its opposites.

I wish to approach truth as closely as is possible, and therefore I abstract everything until I arrive at the fundamental quality of objects.