In principle, any abstraction of the object is allowed which has a sufficiently strong creative power behind it.

There is nothing I hate more than sentimentality.

If you wish to get hold of the invisible you must penetrate as deeply as possible into the visible.

One of my problems is to find the self.

I went across the fields to avoid the straight highways, along the firing lines where people were shooting at a small wooded hill, which is now covered with wooden crosses and lines of graves instead of spring flowers.

Height, width, and depth are the three phenomena which I must transfer into one plane to form the abstract surface of the picture, and thus to protect myself from the infinity of space.

Art is creative for the sake of realization, not for amusement... for transfiguration, not for the sake of play.