“There are works of art that are not remote from common life, that are widely enjoyed in a community as signs of a collective life, and as means for its sustaining. The re-creation of experience in the act of expression is not a solitary matter limited to the artist and some chance individual who responds to it. In the degree in which art exercises its office, it is the re-creation of the experience of a community in a way that enhances and pervades the life of all its members.”