Emotivism: The assertion that all individual ethical judgments are purely expressions of one's own attitude intended to change the actions or attitudes of others.
What is art for? "L'art pour l'art" wrote Théophile Gautier as a slogan in 1835. And today's bohemians continue to repeat the creed "Art for art's sake." It's a catchy slogan, still what most people unreflectively tell themselves when confronted with the question: "What is the purpose of art?"