We might regard them as four different approximations to the nature of the world. They are cornering it, so to speak, from different sides. A thoroughly competent critic is one who has both intimate experience with the art he is judging and possession of reliable criteria of criticism. So here is presented Pepper's view of art criticism. It is the best interpretation of a work of art available to the expert, one's who's judgment is based upon an empirical philosophy derived from an operational systematization of the facts of worldly observations.
Art is a product of the psychology and philosophy of man.
People's responses and feelings towards a work of art can be added up into some sort of cumulative prediction of future behavior affect by the same work of art on future spectators. Art can be studied like another field of psychology. The effect of art on people can be measured and predicted. Thus I, as an art graduate student of painting and drawing, left at a loss in my search for the meaning of art, when I completed the traditional program leading to the Masters of Art at a state university. It was only natural that I should turn to psychology, a department outside of the fine arts, in order to find out for myself what the art professors were not teaching or did not know.