Oh sleep! It is a gentle thing, Beloved from pole to pole! — Samuel Taylor Coleridge

Coleridge, Samuel Taylor. "The Rime of the Ancient Mariner." Samuel Taylor Coleridge: The Major Works, edited by H. J. Jackson. Oxford University Press, 2009, pt. 5.

Coleridge, Samuel Taylor. "The Rime of the Ancyent Marinere." Lyrical Ballads, with a Few Other Poems. London: J. & A. Arch, 1798, pt. 5.