The pleasures, therefore, which a kindly but monotonous environment produces, often fail to make it beautiful, for the simple reason that the environment is not perceived. Likewise the hideousness of things to which we are accustomed -- the blemishes of the landscape, the ugliness of our clothes or of our walls -- do not oppress us, not so much because we do not see the ugliness as because we overlook the things. The beauties or defects of monotonous objects are easily lost, because the objects are themselves intermittent in consciousness. But it is of some practical importance to remark that this indifference of monotonous values is more apparent than real. The particular object ceases to be of consequence; but the congruity of its structure and quality with our faculties of perception remains, and its presence in our environment is still a constant source of vague irritation and friction, or of subtle and pervasive delight. And this value, although not associated with the image of the monotonous object, lies there in our mind, like all the vital and systemic feelings, ready to enhance the beauty of any object that arouses our attention, and meantime adding to the health and freedom of our life -- making whatever we do a little easier and pleasanter for us. A grateful environment is a substitute for happiness. It can quicken us from without as a fixed hope and affection, or the consciousness of a right life, can quicken us from within. To humanize our surroundings is, therefore, a task which should interest the physicians both of soul and body. But the monotony of multiplicity is not merely intrinsic in the form; what is perhaps even of greater consequence in the arts is the fact that its capacity for association is restricted. What is in itself uniform cannot have a great diversity of relations. Hence the dryness, the crisp definiteness and hardness, of those products of art which contain an endless repetition of the same elements. Their affinities are necessarily few; they are not fit for many uses, nor capable of expressing many ideas. The heroic couplet, now too much derided, is a form of this kind. Its compactness and inevitableness make it excellent for an epigram and adequate it for a satire, but its perpetual snap and unvarying rhythm are thin for an epic, and impossible for a song. The Greek colonnade, a form in many ways analogous, has similar limitations. Beautiful with a finished and restrained beauty, which our taste is hardly refined enough to appreciate, it is incapable of development. The experiments of Roman architecture sufficiently show it; the glory of which is their Roman frame rather than their Hellenic ornament.