XXVI. Of which the first is, that wherever Proportion exists at all, one member of the composition must be either larger than, or in some way supreme over, the rest. There is no proportion between equal things. They can have symmetry only, and symmetry without proportion is not composition. It is necessary to perfect beauty, but it is the least necessary of its elements, nor of course is there any difficulty in obtaining it. Any succession of equal things is agreeable; but to compose is to arrange unequal things, and the first thing to be done in beginning a composition is to determine which is to be the principal thing. I believe that all that has been written and taught about proportion, put together, is not to the architect worth the single rule, well enforced, "Have one large thing and several smaller things, or one principal thing and several inferior things, and bind them well together." Sometimes there may be a regular gradation, as between the heights of stories in good designs for houses; sometimes a monarch with a lowly train, as in the spire with its pinnacles: the varieties of arrangement are infinite, but the law is universal--have one thing above the rest, either by size, or office, or interest. Don't put the pinnacles without the spire. What a host of ugly church towers have we in England, with pinnacles at the corners, and none in the middle! How many buildings like King's College Chapel at Cambridge, looking like tables upside down, with their four legs in the air! What! it will be said, have not beasts four legs? Yes, but legs of different shapes, and with a head between them. So they have a pair of ears: and perhaps a pair of horns: but not at both ends. Knock down a couple of pinnacles at either end in King's College Chapel, and you will have a kind of proportion instantly. So in a cathedral you may have one tower in the centre, and two at the west end; or two at the west end only, though a worse arrangement: but you must not have two at the west and two at the east end, unless you have some central member to connect them; and even then, buildings are generally bad which have large balancing features at the extremities, and small connecting ones in the centre, because it is not easy then to make the centre dominant. The bird or moth may indeed have wide wings, because the size of the wing does not give supremacy to the wing. The head and life are the mighty things, and the plumes, however wide, are subordinate. In fine west fronts with a pediment and two towers, the centre is always the principal mass, both in bulk and interest (as having the main gateway), and the towers are subordinated to it, as an animal's horns are to its head. The moment the towers rise so high as to overpower the body and centre, and become themselves the principal masses, they will destroy the proportion, unless they are made unequal, and one of them the leading feature of the cathedral, as at Antwerp and Strasburg.