XXIII. It is interesting to follow into its many ramifications, the influence of the corrupting principle; but we have seen enough of it to enable us to draw our practical conclusion--a conclusion a thousand times felt and reiterated in the experience and advice of every practised artist, but never often enough repeated, never profoundly enough felt. Of composition and invention much has been written, it seems to me vainly, for men cannot be taught to compose or to invent; of these, the highest elements of Power in architecture, I do not, therefore, speak; nor, here, of that peculiar restraint in the imitation of natural forms, which constitutes the dignity of even the most luxuriant work of the great periods. Of this restraint I shall say a word or two in the next Chapter; pressing now only the conclusion, as practically useful as it is certain, that the relative majesty of buildings depends more on the weight and vigor of their masses than on any other attribute of their design: mass of everything, of bulk, of light, of darkness, of color, not mere sum of any of these, but breadth of them; not broken light, nor scattered darkness, nor divided weight, but solid stone, broad sunshine, starless shade. Time would fail me altogether, if I attempted to follow out the range of the principle; there is not a feature, however apparently trifling, to which it cannot give power. The wooden fillings of belfry lights, necessary to protect their interiors from rain, are in England usually divided into a number of neatly executed cross-bars, like those of Venetian blinds, which, of course, become as conspicuous in their sharpness as they are uninteresting in their precise carpentry, multiplying, moreover, the horizontal lines which directly contradict those of the architecture. Abroad, such necessities are met by three or four downright penthouse roofs, reaching each from within the window to the outside shafts of its mouldings; instead of the horrible row of ruled lines, the space is thus divided into four or five grand masses of shadow, with grey slopes of roof above, bent or yielding into all kinds of delicious swells and curves, and covered with warm tones of moss and lichen. Very often the thing is more delightful than the stone-work itself, and all because it is broad, dark, and simple. It matters not how clumsy, how common, the means are, that get weight and shadow--sloping roof, jutting porch, projecting balcony, hollow niche, massy gargoyle, frowning parapet; get but gloom and simplicity, and all good things will follow in their place and time; do but design with the owl's eyes first, and you will gain the falcon's afterwards.