Marcel Duchamps have in your job, witch is called "ready made", is about art with things of our day-to-day, doing this he can ask to us:

            "What is art? Has to be a painting or a sculpture? Has to be beautiful? so what is beautiful?"

            Art don't have to be beautiful, beauty its a idea created by the media, the principal goal of the art is create inside of the watcher any type of felling can be good or bad, lovely or relutance. The art have the idea to show a menssage from the author and some times create critics of the society and Duchamps show that why the beauty have to be some thing perfect while the author of the art isn't so the art wasn't showing what is realy inside the artist.

            Marcel invite us a invitation: go out of this model off beauty lets create yous own beauty.