MARCEL DUCHAMP
[1887 – 1968] a French-American artist

 
Unless a picture shocks, it is nothing. - Marcel Duchamp
It’s the viewer that makes the work. - Marcel Duchamp
You know exactly what I think of photography. I would like to see it make people despise painting until something else will make photography unbearable. - Marcel Duchamp
In a letter to Alfred Stieglitz.
Without glue—Make an assembly of ‘readymades’ balanced one on top of the other and photograph them. - Marcel Duchamp