If a shadow is a two-dimensional projection of the three-dimensional world, then the three-dimensional world as we know it is the projection of the four-dimensional Universe.
Marcel DuchampI'm not at all sure that the concept of the readymade isn't the most important single idea to come out of my work.
Marcel DuchampThe curious thing about that moustache and goatee is that when you look at the Mona Lisa it becomes a man. It is not a woman disguised as a man; it is a real man, and that was my discovery, without realising it at the time.
Marcel DuchampAs soon as we start putting our thoughts into words and sentences everything gets distorted, language is just no damn good—I use it because I have to, but I don’t put any trust in it. We never understand each other.
Marcel DuchampThe creative act is not performed by the artist alone; the spectator brings the work in contact with the external world by deciphering and interpreting its inner qualifications and thus adds his contribution to the creative act.
Marcel DuchampWhat I have in mind is that art may be bad, good or indifferent, but, whatever adjective is used, we must call it art, and bad art is still art in the same way that a bad emotion is still an emotion.
Marcel DuchampSince a three-dimensional object casts a two-dimensional shadow, we should be able to imagine the unknown four-dimensional object whose shadow we are. I for my part am fascinated by the search for a one-dimensional object that casts no shadow at all.
Marcel Duchamp