Date: 1820

"Hark, sister! what a low yet dreadful groan / Quite unsuppressed is tearing up the heart / Of the good Titan, as storms tear the deep, / And beasts hear the sea moan in inland caves."

— Shelley, Percy Bysshe (1792-1822)

Date: 1820

"To cheer thy state / I bid ascend those subtle and fair spirits, / Whose homes are the dim caves of human thought, / And who inhabit, as birds wing the wind, / Its world-surrounding aether."

— Shelley, Percy Bysshe (1792-1822)

Date: 1820

"On a poet's lips I slept / Dreaming like a love-adept / In the sound his breathing kept; / Nor seeks nor finds he mortal blisses, / But feeds on the aëreal kisses / Of shapes that haunt thought's wildernesses."

— Shelley, Percy Bysshe (1792-1822)

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: 1826

"[T]hen sweet Memory / May come, and with her mirror cheer thy mind, / On whose bright surface lovelier scenes shall live / Than any shrined within Italian climes."

— Radcliffe [née Ward], Ann (1764-1823)

Date: 1838

All the "eye doth meet is mist and crag" in "the world of thought and mental might"

— Keats, John (1795-1821)

Date: 1848

"It is often obscure, often half-told; for he who wrote it, in his clear seeing of the things beneath, may have been impatient of detailed interpretations; for if we choose to dwell upon it and trace it, it will lead us always securely back to that metropolis of the soul’s dominion from which we ...

— Ruskin, John (1819-1900)