Date: 1723

"Can'st say what diff'rent Turns the Spirits take, / When they of diff'rent Kinds Impressions make; / What vital Springs those Spirits in their Flight / Strike to cause Torment, what to give Delight."

— Blackmore, Sir Richard (1654-1729)

Date: 1725

"In Pieces took here we are shewn the whole / Clock-work and Mechanism of the Soul; / May see the Movements, Labyrinths, and Strings, / Its Wires, and Wheels, and Balances, and Springs; / How 'tis wound up to its full Height, and then / What checks, and stops, and settles it again."

— Glanvil, John (1664-1735)

Date: 1733-4

"What if the head, the eye or ear repin'd / To serve mere engines to the ruling Mind?"

— Pope, Alexander (1688-1744)

Date: 1733-4

"Self-love, the spring of motion, acts the soul; / Reason's comparing balance rules the whole."

— Pope, Alexander (1688-1744)

Date: 1752

A puppet may be "compell'd by secret Springs" just as an engine "moves with Motions not its own"

— Duncombe, John (1729-1786) [pseud.]

Date: 1777

"I'd hangings weave, in fancy's loom / For Lady Norton's dressing room."

— Mason, William (1725-1797)

Date: 1784

"Thy piercing thought / Unaided saw each movement of the mind, / As skilful artists view the small machine, / The secret springs and nice dependencies, / And to thy mimic scenes, by fancy wrought / To such a wond'rous shape, th'impassion'd breast / In floods of grief, or peals of laughter bow'd, ...

— Jago, Richard (1715-1781)