"Indeed!"
"Let me lend you something to read while you're waiting."
"You're very kind. But I've had nothing to eat. Would you mind if I took it out with me?"
"Delighted! What do you say to Locke's Human Understanding?" he asked, as he produced a book.
"Thank you very much."
"Or here's Butler's Anatomy of Melancholy."
"But—"
"Or 'Obbes's Leviathan," he suggested, producing a third volume.
"Thank you, but Locke will do to begin upon."
"Ask me to explain anything you don't understand," he urged.