You cannot define electricity. The same can be said of art. It is a kind of inner current in a human being, or something which needs no definition.
Marcel DuchampI think there is a great deal to the idea of not doing a thing, but that when you do a thing, you don't do it in five minutes or in five hours, but in five years.
Marcel DuchampI believe that the artist doesn't know what he does. I attach even more importance to the spectator than to the artist.
Marcel DuchampSince I found that one could make a case shadow from a three-dimensional thing, any object whatsoever - just as the projecting of the sun on the earth makes two dimensions - I thought that by simple intellectual analogy, the fourth dimension could project an object of three dimensions, or, to put it another way, any three-dimensional object, which we see dispassionately, is a projection of something four-dimensional, something we are not familiar with.
Marcel Duchamp