"The Greeks left the subject [of aesthetics] relatively unexplored because they considered an artist no different from a shoemaker. They were, therefore, unable to recognize in his production the symbol of beauty. It appears that it is difficult for us to think without the Greeks. The Museum of Modern Art is going ahead without the help of the universities and without the Greeks. It has recognized its double burden and its double privilege. It is making decisions about beauty as well as displaying beauty. It is also attempting to teach aesthetics. It knows that it is not enough to have exhibits. People have eyes and perceive. Perception can be taught. Perception is understanding."