The artist Piet Moget (b. 1928). "Karel Appel has always been attracted to the physical aspects of painting - to the bodily act of moving color across a surface and magically bringing it to glorious life. Throughout his long career, he has never cared much about staying properly within the limits of what could, at any given moment, be called his style. The adventure of painting, the physical adventure, has led him to discoveries and innovations rooted within the practice itself. Because he has been very willing to go with the energy of the practice (like Picasso, unable to resist all the sudden, surprising attractions), his art has explored many directions and yet remains unified by a marvellous signature: an extraordinary fluency of form and color that is unmistakably his". Art historian Rudi Fuchs on Karel Appel's later work in the catalogue "Karel Appel, Passages 2", Galerie Kusseners, Belgium 2000, p.p. 27-28.