Cubism Pablo Picasso and Georges Braque in the Montmartre quarter of Paris, and to show that Cubism, rather than being an isolated art-form, represented the continuation of a grand tradition (indeed, the golden ratio had fascinated Western intellectuals of diverse interests for at least 2,400 years). The idea of the Section d'Or originated in the course of conversations between Metzinger, Gleizes and Jacques Villon. The group's title was suggested by Villon, after reading a 1910 translation of Leonardo da Vinci's "Trattato della Pittura" by Joséphin Péladan. The fact that the 1912 exhibition had been curated to show the successive stages through
Czech Cubism secessionist designers such as Otto Wagner and Jan Kotěra. Architects such as Josef Chochol and Pavel Janák devised spiritualist philosophies of design and a dynamic ideal of planar form derived from cubist art. As Cubism spread across the European continent in the early 20th century, its greatest impact can be seen today in the Czech Republic. Pyramid and crystal forms were one of the signature principles seen in Czech Cubism which was incorporated in architecture, furniture, and applied arts. The Museum of Decorative Arts in Prague (UPM) uses the House of the Black Madonna as a permanent exhibition space for