Looking through an aperture [a door or a window] is a way that I have been able to isolate or fragment a single form. My first memory of focusing through an aperture occurred when I was around twelve years old. One evening, passing the lighted window of a house. I was fascinated by red, blue and black shapes inside a room. But when I went up and looked in, I saw a red coach, a blue drape and a black table. The shapes had disappeared. I had to retreat to see them again.

p. unknown : 'Notes from 1969' - In: "Ellsworth Kelly: Works on Paper," 1987