"To be a painter for the sake of being a painter was never the ultimate aim of my life. That's why I tried to go into different forms of activity -- purely optical things and kineticism". When Gabrielle Buffet discovered Duchamp's Rotoreliefs, she emphasized this point further: "Duchamp's aim was to primarily to modify all plastic matter, to reject once and for all from his working arsenal all the traditional tools and equipment (tubes of paint, canvas, and brushes); to obtain the effect by mechanical means instead of through the expression of personal dynamism inherent in a particular individuality; to substitute technical value for expressive value".