Date: 1820

"And they [Stewart, Tracy, Cabanis] ask why may not the mode of action called thought, have been given to a material organ of peculiar structure, as that of magnetism is to the needle, or of elasticity to the spring by a particular manipulation of the steel."

— Jefferson, Thomas (1743-1826)

Date: 1821

"'Ah, move,' he said, 'and you shall feel / That Paddy has a heart of steel"

— Combe, William (1742 -1823)

Date: 1823

The "venom'd shafts" of Cupid "empoison mortal joy," "Drawing from heav'n the soul of man to earth, / With foul alloy debasing purest treasure."

— Burges, Sir James Bland (1752-1824)

Date: 1824

"'I rose; and, bending at her sweet command, / Touched with faint lips the cup she raised, / And suddenly my brain became as sand / 'Where the first wave had more than half erased / The track of deer on desert Labrador; / Whilst the wolf, from which they fled amazed, / 'Leaves his stamp visibly u...

— Shelley, Percy Bysshe (1792-1822)

Date: 1826

"Then with a Warmth of Language, which He thought / Must on a Heart of Steel or Stone have wrought, / He prest his Suit"

— Crabbe, George (1754-1832)

Date: 1826

"Seen many a Comrade droop, & strove to steel / His heart, but still the Woes of War could fee / With Other Woes."

— Crabbe, George (1754-1832)

Date: 1827

"I feel a joy, / Dear to my heart, and mixed with no alloy."

— Gifford, William (1756-1826)

Date: 1830

"To grasp intelligence as this night-like mine or pit in which is stored a world of infinitely many images and representations, yet without being in consciousness, is from the one point of view the universal postulate which bids us treat the notion as concrete, in the way we treat, for example, t...

— Hegel, G. W. F. (1770-1831)

Date: 1836

"Yet, though their 'souls the iron enter'd,' moans / From captive kings were not enough to sate / Barbaric vengeance"

— Polwhele, Richard (1760-1838); Moschus

Date: 1837

The heart may be made of stone

— Goldsmith, Oliver (1728?-1774)