Date: 1664

"The parts of the blood which penetrate as far as the brain serve not only to nourish and sustain its substance, but also and primarily to produce in it a certain very fine wind, or rather a very lively and pure flame, which is called the animal spirits."

— Descartes, René (1596-1650)

Date: 1694

"As Fire under Ashes, nor the Sun obscured from our sight by thick Clouds, afford not their full lustre, so the Soul overwhelmed in moist or faulty matter, is darkned, and Reason thereby overclouded"

— Aristotle [pseud.]

Date: 1697

"What inward Whips my tortur'd Bowels tear? / Fierce Vipers twist their Spires about my Heart, / And Bite, and Sting, and Wound with deadly smart. / With more than Atlas weight my Soul's opprest, / And raging Tempests beat along my breast: / Corroding Flames eat thro' my burning veins, / And all ...

— Blackmore, Sir Richard (1654-1729)

Date: 1700

"E'er since which time, unhappy Lovers see, / Their Passion ne'er can be from Tempests free / It Ebbs and Flows, unfixt, not long the same, / A rowling Ocean of tumultuous Flame."

— Hopkins, John (b. 1675)

Date: 1712

"The Sun (when Summer-heats the Spring succeed) / Changes the tarnish'd Verdure of the Mead: / The dry'd up Rills no longer murmuring creep / O'er the smooth Pebbles, and invite to sleep, / But buzzing Insects make an uncouth Noise, / And sulph'rous Vapours thunder in the Skies. / So when the Hea...

— Cobb, Samuel (1675-1713); Rowe, Nicholas (1674-1718); Quillet, Claudius (fl.1640-1656)

Date: 1712

"Strong as the Winds, and sprightly as the Light? / She [the mind] moves unweary'd, as the active Fire, / And, like the Flame, her Flights to Heav'n aspire."

— Blackmore, Sir Richard (1654-1729)

Date: Monday, July 13, 1724

"Oh, Jealousy!--All other Storms are Calms / To Thee!--Thou Conflagration of the Soul!"

— Hill, Aaron (1685-1750)

Date: 1726, 1753

"But I have err'd; and, with delirious aim, / Would picture motion, and imprison flame. / He, who can light'ning's flash, to colours, bind, / May paint love's influence, on the burning mind."

— Hill, Aaron (1685-1750)

Date: 1728

Strait the fierce Storm involves his Mind anew, / Flames thro' the Nerves, and boils along the Veins; / While anxious Doubt distracts the tortur'd Heart; / For even the sad Assurance of his Fears / Were Heaven to what he feels."

— Thomson, James (1700-1748)

Date: 1742

"A soul immortal, spending all her fires, / Wasting her strength in strenuous idleness, / Thrown into tumult, raptured, or alarm'd, / At aught this scene can threaten, or indulge, / Resembles ocean into tempest wrought, / To waft a feather, or to drown a fly."

— Young, Edward (bap. 1683, d. 1765)