While reading today about the Lyon Biennial I ran into the sentence:
As Robert Smithson succinctly put it in 1973: 'The opposite of waste is luxury. Both waste and luxury tend to be useless.' My thought of the day, which is certainly not very original, is that art is luxury and, succinctly put, it too tends to be useless.
Next jour addendum: As the wife of the Ranting Economist I should know that the word "use" (unqualified) is itself rather useless....