Well! the more you think of it, the more right you see the _impressionist_ is--from his point of view. He says, if you are going to be natural, be really natural; if you want to make your pictures look real, make them real in a natural way. If the only thing in art is to be as like nature as possible, and to represent things only as they would appear, if you suddenly looked at them, the _impressionist_ is right. And what makes this way of looking at things particularly interesting is the fact, that it is so often the momentary effect in nature that is most beautiful: the effect that lasts but a moment, that is fugitive or fleeting, caught in an instant, before it changes to something else. You know what I mean from your own experience. A certain expression passes over your friend’s face. “Oh! if I could only photograph her now,” you exclaim; but by the time you have arranged your camera, it is gone, and cannot be brought back to order. Well, it is just that fugitive, fleeting expression of a subject that the _realist_, who is an _impressionist_, tries to represent in his pictures.