Albert Frederick Calvert,
Moorish Remains in Spain
“ In the introduction to my volume on the Alhambra, I emphasised this fact, that the Moors ever had regard to the first principle of architecture—to decorate construction, never to construct decoration. In Arabian architecture, not only does the decoration arise naturally out of the construction, but the constructive idea is carried out in every detail{442} of the ornamentation of the surfaces. A superfluous or useless ornament is never found in Moorish decoration; every ornament arises naturally and inevitably from the parent design. ”
