"Whatever art offered the men and women of previous eras, what it offers our own, it seems to me, is space - a certain breathing room for the spirit. The town I grew up in had many vacant lots; when I go back now, the vacant lots are gone. They were a luxury, just as tigers and rhinoceri, in the crowded world that is making, are luxuries. Museums and bookstores should feel, I think, like vacant lots - places where the demands on us are our own demands, where the spirit can find exercise in unsupervised play."