Date: 1790, 1794, 1795, 1818, 1827

"For man has closed himself up, till he sees all things thro' narrow chinks of his cavern."

— Blake, William (1757-1827)

Date: 1791, 1806

"Oh! horrid Night! / Thou prying Monitor confest! / Whose key unlocks the human breast, / And bares each avenue to mental sight!"

— Robinson [Née Darby], Mary [Perdita] (1758-1800)

Date: w. 1798-1800, 1814

"Not Chaos, not / The darkest pit of lowest Erebus, / Nor aught of blinder vacancy, scooped out / By help of dreams--can breed such fear and awe / As fall upon us often when we look / Into our Minds, into the Mind of Man-- / My haunt, and the main region of my song."

— Wordsworth, William (1770-1850)