If you look out of window into a street, you may see a number of figures on the sidewalks. You receive a general impression of figures, moving or standing still; some men, some women, representing various spots of one color. Now a _realistic_ painter might say, “Each one of those figures represents a real person; I will paint him as he really is; and, to do so, will ask him to stand still long enough for me to study him exactly in all his visible details.” “And if you do,” retorts the _impressionist_ painter, “you will paint something so real, that it will be too real. For you never could see these people in