The fact of choosing, of selecting, and deciding on one, was the result of being very careful about not using my sense of beauty or my belief in some aesthetics of some kind. In other words, finding some object of complete indifference, as far as aesthetics are concerned. And that indifference is very difficult, because there is always some detail in any object that will attract you, aesthetically. Meaning that you will find it beautiful, or even ugly. —Marcel Duchamp, talking to Martin Friedman, Walker Art Center director (1961-1990), about the readymade.