SECTION XXXIV. LAW IV. _The shafts may sometimes be independent of the construction._ Exactly in proportion to the importance which the shaft assumes as a large jewel, is the diminution of its importance as a sustaining member; for the delight which we receive in its abstract bulk, and beauty of color, is altogether independent of any perception of its adaptation to mechanical necessities. Like other beautiful things in this world, its end is to _be_ beautiful; and, in proportion to its beauty, it receives permission to be otherwise useless. We do not blame emeralds and rubies because we cannot make them into heads of hammers. Nay, so far from our admiration of the jewel shaft being dependent on its doing work for us, it is very possible that a chief part of its preciousness may consist in a delicacy, fragility, and tenderness of material, which must render it utterly unfit for hard work; and therefore that we shall admire it the more, because we perceive that if we were to put much weight upon it, it would be crushed. But, at all events, it is very clear that the primal object in the placing of such shafts must be the display of their beauty to the best advantage, and that therefore all imbedding of them in walls, or crowding of them into groups, in any position in which either their real size or any portion of their surface would be concealed, is either inadmissible together, or objectionable in proportion to their value; that no symmetrical or scientific arrangements of pillars are therefore ever to be expected in buildings of this kind, and that all such are even to be looked upon as positive errors and misapplications of materials: but that, on the contrary, we must be constantly prepared to see, and to see with admiration, shafts of great size and importance set in places where their real service is little more than nominal, and where the chief end of their existence is to catch the sunshine upon their polished sides, and lead the eye into delighted wandering among the mazes of their azure veins.