“It is the artists, and a certain line of thinking about art, that have given the people with the cash permission to buy and sell what amounts to nothing, and to do so for ever larger and more insane sums of money. All this sensational commerce is fueled by the anti-aesthetics that were born nearly a century ago among the Dadaists, and have by now morphed into the laissez-faire aesthetics that give collectors sanction to regard one of Jeff Koons’s stainless-steel balloon animals as simultaneously a camp joke and a modern equivalent of a Tang dynasty horse.”