De Witt H. Parker, The Principles of Aesthetics
“ Nevertheless, although it is impossible to reach a pure aesthetic judgment, we ought to strive to approach it, and, by dint of training and clear thinking about art, we can approach it. We ought to do this, not because of any formalism or purism, but for the sake of preserving the unique value of art, which is covered up or destroyed by the intrusion of non-aesthetic standards of judgment. ”
