Since 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 DuchampThis concern which interests us more than anything else: the blurring of the distinction between art and life.
Marcel DuchampAmong our articles of lazy hardware, I recommend the faucet that stops dripping when no one is listening to it.
Marcel Duchamp