I believe that to do anything in this world one needs a love for risk and adventure, and above all, to be able to do without what middle-class families call "future.
I throw down the gauntlet to chance. For example, I prepare the ground for a picture by cleaning my brush over the canvas. Spilling a little turpentine can also be helpful.
Never, never do I set to work on a canvas in the state it comes in from the shop. I provoke accidents - a form, a splotch of color. Any accident is good enough. I let the matiere decide. Then I prepare a ground by, for example, wiping my brushes on the canvas. Letting fall some drops of turpentine on it would do just as well. If I want to make a drawing I crumple the sheet of paper or I wet it; the flowing water traces a line and this line may suggest what is to come next.
A modeled form is less striking than one which is not. Modeling prevents shock and limits movement to the visual depth. Without modeling or chiaroscuro depth is limitless: movement can stretch to infinity.