Marcel Duchamp, Nude Descending Staircase, No. 2 , 1912 Philadelphia Museum of Art Marcel Duchamp's Nude Descending Staircase: An Hom.
I feel shame, not for the wrong things I have done but for the right things I have failed to do. by Marcel Duchamp
Marcel Duchamp, Bicycle Wheel, 1913 French, Dada « ready made