The Mind is a Metaphor: A Database of Eighteenth-Century Metaphors of Mind: Assembled and Taxonomized by Brad Pasanek: "This collection of eighteenth-century metaphors of mind is part of a scholarly study of the metaphors and root-images appealed to by the novelists, poets, dramatists, essayists, philosophers, belle lettrists, preachers, and pamphleteers of the eighteenth century. While the database does include metaphors from classical sources, from Shakespeare and Milton, the King James Bible, and more recent texts, it does not pretend to any depth or density of coverage in literature other than that of the British eighteenth century."

See also The Mind is a Metaphor, a series of "mini-essays or explications" of some of Pasanek's favorite metaphors.