To me the most important thing in composition is disparity. Thus black and white are the strong colors, with a spot of red to mark the other corner o… - Alexander Calder

Question, Léger once called you a realist. How do you feel about this?
Yes, I think I am a realist. Because I make what I see. It's only the problem of seeing it. If you can imagine a thing, conjure it up in space - then you can make it, and tout de suite you're a realist. The universe is real but you can't see it. You have to imagine it. Once you imagine it, you can be realistic about reproducing it.

How can art be realized? Out of volumes, motion, spaces bounded by the great space, the universe. Out of different masses, tight, heavy, middling - indicated by variations of size or color - directional line - vectors which represent speeds, velocities, accelerations, forces, etc...- these directions making between them meaningful angles, and senses, together defining one big conclusion or many. Spaces, volumes, suggested by the smallest means in contrast to their mass, or even including them, juxtaposed, pierced by vectors, crossed by speeds. Nothing at all of this is fixed. Each element able to move, to stir, to oscillate, to come and go in its relationships with the other elements in its universe. It must not be just a fleeting moment but a physical bond between the varying events in life. Not extractions, but abstractions. Abstractions that are like nothing in life except in their manner of reacting.

Question: How do you get that subtle balance in your work?
You put a disk here and then you put another disk that is a triangle at the other end and then you balance them on your finger and keep on adding. I don't use rectangles - they stop. You can use them; I have at times, but only when I want to block, to constipate movement.