The principle of this art [as Mondrian proposes his view on modern art] is not a negation of matter, but a great love of matter, whereby it is seen i… - Piet Mondrian

I am searching for the proper harmony of rhythm and unchanging proportion, as I wrote in the article. And I cannot tell you how difficult it is. [Mondrian is reacting on Van Doesburg criticism of the strong domination of the regular grid in Mondrian's latest paintings]

And then about whether or not to work from a given in nature. In my view, you [ Van Doesburg ] define this in a rather narrow sense. In the main, I do agree with you that the destruction of the natural, and it reconstruction, must be accomplished according to a spiritual image, but I believe that we should take a broad view here. 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 ['Composition, Checkerboard Dark Colours', 1919] 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.

Art is higher than reality and has no direct relation to reality. To approach the spiritual in art, one will make as little use as possible of reality, because reality is opposed to the spiritual. We find ourselves in the presence of an abstract art. Art should be above reality, otherwise it would have no value for man.