“A good deal of the outrage directed at the idea of selling off art from Detroit’s museum is a backlash against the vague idea that doing so would mean rejecting art as a whole, or would amount to a declaration that the residents of Detroit do not deserve to enjoy art. On the contrary. I can think of no higher expression of Van Gogh’s artistic worth than the fact that Detroit could—with the sale of a single one of his paintings—provide water to all of its citizens.”