Date: 1776

"Hence the strange parade he makes with regions, and recesses, hollow caverns, and private seats, wastes, and wildernesses, fruitful and cultivated tracks, words which, though they have a precise meaning as applied to country, have no definite signification as applied to mind."

— Campbell, George (1719-1796)

Date: 1800

"Every sense was an inlet of pleasure, because it was an avenue to knowledge; and my soul brooded over the world of ideas, and glowed with exultation at the grandeur and beauty of its own creations"

— Brown, Charles Brockden (1771-1810)

Date: 1820

"Only a sense / Remains of them, like the omnipotence / Of music, when the inspired voice and lute / Languish, ere yet the responses are mute, / Which through the deep and labyrinthine soul, / Like echoes through long caverns, wind and roll."

— Shelley, Percy Bysshe (1792-1822)

Date: 1871-2, 1874

"How was it that in the weeks since her marriage, Dorothea had not distinctly observed but felt with a stifling depression, that the large vistas and wide fresh air which she had dreamed of finding in her husband's mind were replaced by anterooms and winding passages which seemed to lead nowhither?"

— Eliot, George (1819-1880)

Date: February 28, 2014

"A memory palace assembled ad hoc from brownstone apartments, underground caves and submarine compartments, or a diligently designed, continuously flowing and elegant old Alpine resort?"

— Itzkoff, Dave (b. 1976)

Date: July 16, 2016

"Special short-term memories become permanent memories, which in turn are the foundation stones of Riley's personality, represented by towering islands."

— Gabriel, Trip (b. 1955)