Date: 1664

"And finally, when a rational soul is present in this machine it will have its principal seat in the brain, and reside there like the fountain-keeper who must be stationed at the tanks to which the fountain's pipes return if he wants to produce, or prevent, or change their movements in some way."

— Descartes, René (1596-1650)

Date: 1794

"With shadowy trident how Volition guides, / Surge after surge, his intellectual tides; / Or, Queen of Sleep, Imagination roves / With frantic Sorrows, or delirious Loves."

— Bilsborrow, Dewhurst (fl. 1794)

Date: 1807-8

"So minds debas'd can torture gen'rous acts: / And thus, by terrors haunted, hunger-pinch'd, / Hag-ridden by the demon at their hearts, / Suspicious, tost from thought to thought, they watch'd / The lagging hours of night"

— Burges, Sir James Bland (1752-1824)