It was he who bought the urinal for Duchamp, with whom he participated in the New York Dada movement along with Picabia and Man Ray. An avant-gardist in love with the metropolis, a futurist enamoured of the Brooklyn Bridge: “The violent luminosity of electricity has provoked a new polyphony,” he wrote. “Steel has risen to hyperbolic heights.” Surrealist and later symbolist with visions of an animist and geometric religiosity.
