抄録
Eugène Viollet-le-Duc was an architect and a restorer of the cathedrals from the Middle Ages. Inspired by theorists of comparative anatomy such as Geoffroy Saint-Hiraire and Johann Wolfgang von Goethe, Viollet-le-Duc developed a theory for producing rational architecture opposed to architectural eclecticism. Viollet-le-Duc considered the crystal as an archetypical model for cathedrals from the Middle Ages, which, according to him, follow the principles of the equilibrium of forces and elasticity. Viollet-le-Duc thought that these structural principles of medieval cathedrals would give a hint for producing new architecture in the nineteenth century.
