13.     Duchamp stated "I'm not at all sure that the concept of the Readymade isn't the most important single idea to come out of my work" (as cited in Kuh, 1905, p. 92; emphasis mine). The Large Glass was his master work. Duchamp categorizes all of his readymades as a "single idea coming out of his work." I believe that his one idea-readymades-came in a "limited series" out of his Large Glass, just as Poincaré's "readymades" came out of his creativity machine as one idea (in a series of revelations).