The preference of serenity to melancholy, of light to darkness, are among the most firmly established in the canon, that is all. The sense of proportion within a design is employed to stimulate and delight the eye. Ordinary people may fear there is some abstruse science about this. Not at all; it is as simple as relishing milk and honey, and its development an exact parallel to the training of the palate to distinguish the flavours of teas, coffees and wines. "Taste and see" is the whole business. There are many people who have no hesitation in picking out what to their eye is the wainscot panel with the richest grain: they see it at once. So with etchings; if people would only forget that they are works of art, forget all the false or ill-understood standards which they have been led to suppose applicable, and look at them as they might at agate stones; or choose out the richest in effect: the most suitable for a gay room, or a hall, or a library, as though they were patterned stuffs for curtains; they would come a thousand times nearer a right appreciation of Dürer's success than by making a pot-shot to lasso the masterpiece with the tangle of literary rubbish which is known as art criticism. The harmonies and contrasts of juxtaposed colours or textures are affected by quantity, and a sense of proportion decides what quantities best produce this effect and what that. The correctness or amount of information to be conveyed in the delineation of some object, in relation to the mood which the artist has chosen shall dominate his work, is determined by his sense of proportion. He may distort an object to any extent or leave it as vague as the shadow on a wall in diffused light, or he may make it precise and particular as ever Jan Van Eyck did; so only that its distortion or elaboration is so proportioned to the other objects and intentions of his work as to promote its success in the eyes of the beholder. There are no fallacies greater than the prevalent ones conveyed by the expressions "out of drawing" or "untrue to nature." There is no such thing as correct drawing or an outside standard of truth for works of art.