Based on the metaphysical implications of the Dadaist dogma.... Arp's Reliefs [carvings] between 1916 and 1922 are among the most convincing illustrations of that anti- rationalistic era... Arp showed the importance of a smile to combat the sophistic theories of the moment. His poems of the same period stripped the word of its rational connotation to attain the most unexpected meaning through alliteration or plain nonsense.

In: 'Appreciations of other artists': Jean (Hans) Arp (sculptor, painter, writer) 1949, by Marcel Duchamp; as quoted in Catalog, Collection of the Societé Anonyme, eds. Michel Sanouillet / Elmer Peterson, London 1975, pp. 143- 159