They forget that human beings are men with two eyes, and not daguerreotype lenses with one eye, and so are contriving and striving to introduce into their pictures the very defect of the daguerreotype which the stereoscope is required to correct." "I comprehend.

They forget that the double vision of our two eyes gives a softness, and indistinctness, and roundness, to every outline." "Exactly so; and therefore, while for distant landscapes, motionless, and already softened by atmosphere, the daguerreotype is invaluable (I shall do nothing else this summer but work at it), yet for taking portraits, in any true sense, it will be always useless, not only for the reason I just gave, but for another one which the pre-Raphaelites have forgotten." "Because all the features cannot be in focus at once ?" "Oh no, I am not speaking of that.

Art, for aught I know, may overcome that; for it is a mere defect in the instrument.

What I mean is this: it tries to represent as still what never yet was still for the thousandth part of a second: that is, the human face; and as seen by a spectator who is perfectly still, which no man ever yet was.

My dear fellow, don't you see that what some painters call idealising a portrait is, if it be wisely done, really painting for you the face which you see, and know, and love; her ever-shifting features, with expression varying more rapidly than the gleam of the diamond on her finger; features which you, in your turn, are looking at with ever-shifting eyes; while, perhaps, if it is a face which you love and have lingered over, a dozen other expressions equally belonging to it are hanging in your memory, and blending themselves with the actual picture on your retina:--till every little angle is somewhat rounded, every little wrinkle somewhat softened, every little shade somewhat blended with the surrounding light, so that the sum total of what you see, and are intended by Heaven to see, is something far softer, lovelier--younger, perhaps, thank Heaven--than it would look if your head was screwed down in a vice, to look with one eye at her head screwed down in a vice also:--though even that, thanks to the muscles of the eye, would not produce the required ugliness; and the only possible method of fulfilling the pre-Raphaelite ideal would be, to set a petrified Cyclops to paint his petrified brother." "You are spiteful." "Not at all.