Physics is an organized body of knowledge about nature, and a student of it says that he is learning physics, not nature. Art, like nature, has to be distinguished from the systematic study of it, which is criticism.
Northrop FryeA reader who quarrels with postulates, who dislikes Hamlet because he does not believe that there are ghosts or that people speak in pentameters, clearly has no business in literature. He cannot distinguish fiction from fact, and belongs in the same category as the people who send checks to radio stations for the relief of suffering heroines in soap operas.
Northrop Frye