L.H.O.O.Q. a late interview (Schwarz 203), Duchamp gives a loose translation of "L.H.O.O.Q." as "there is fire down below". Francis Picabia, in an attempt to publish "L.H.O.O.Q." in his magazine 391 could not wait for the work to be sent from New York City, so with the permission of Duchamp, drew the moustache on Mona Lisa himself (forgetting the goatee). Picabia wrote underneath "Tableau Dada par Marcel Duchamp". Duchamp noticed the missing goatee. Two decades later, Duchamp corrected the omission on Picabia's replica, found by Jean Arp at a bookstore. Duchamp drew the goatee in black ink with a fountain pen,
Readymades of Marcel Duchamp it a little game between 'I' and 'me'". Duchamp was unable to define or explain his opinion of readymades: "The curious thing about the readymade is that I've never been able to arrive at a definition or explanation that fully satisfies me." Much later in life Duchamp said, "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." Robert Fulford described Duchamp's ready-mades as expressing "an angry nihilism". By submitting some of them as art to art juries, the public, and his patrons, Duchamp challenged conventional notions