John Ruskin,
Aratra Pentelici, Seven Lectures on the Elements of Sculpture
“ Sculpture in stone, whether granite, gem, or marble, while we accurately use the general term 'glyptic' for it, may be thought of with, perhaps, the most clear force under the English word 'engraving.' For, from the mere angular incision which the Greek consecrated in the triglyphs of his greatest order of architecture, grow forth all the arts of bas-relief, and methods of localized groups of sculpture connected with each other and with architecture: as, in another direction, the arts of engraving and wood-cutting themselves. ”
