"I think you're more an archivist than a librarian," he said. He told me that archivists and librarians were opposite personas. True librarians are unsentimental. They're pragmatic, concerned with the newest, cleanest, most popular books. Archivists, on the other hand, are only peripherally interested in what other people like, and much prefer the rare to the useful. "They like everything," he said, "gum wrappers as much as books." He said this with a hint of disdain. "Librarians like throwing away garbage to make space, but archivists," he said, "they're too crazy to throw anything out." "You're right," I said. "I'm more of an archivist." "And I'm more of a librarian," he said. "Can we still be friends?"