Date: w. c. 1800, 1805

"These sudden eruptions of the passions of the multitude, spread, like the lava of a volcano, throughout all France, nor could men of correct judgment, who aimed only at reform of abuses, and a renovation in all the departments, check the fury of the torrent."

— Warren, Mercy Otis (1728-1814)

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: March 1843

"It was the sad confession and continual exemplification of the shortcomings of the composite man, the spirit burdened with clay and working in matter, and of the despair that assails the higher nature at finding itself so miserably thwarted by the earthly part."

— Hawthorne, Nathaniel (1804-1864)

Date: 1845

"No words, no tears, no prayers, from his gory victim, seemed to move his iron heart from its bloody purpose."

— Douglass, Frederick (1818-1895)

Date: 1845

"Under its influence, the tender heart became stone, and the lamblike disposition gave way to one of tiger-like fierceness."

— Douglass, Frederick (1818-1895)

Date: 1845

"I then presented an appearance enough to affect any but a heart of iron."

— Douglass, Frederick (1818-1895)

Date: 1850

"The characters of the narrative would not be warmed and rendered malleable by any heat that I could kindle at my intellectual forge."

— Hawthorne, Nathaniel (1804-1864)

Date: 1854

"They love the soil which makes their graves, but have no sympathy with the spirit which may still animate their clay."

— Henry David Thoreau (1817-1862)

Date: 1890

"I've known her from an ample nation / Choose one; / Then close the valves of her attention / Like stone."

— Dickinson, Emily (1830-1886)

Date: 1892

"Least village boasts its blacksmith, / Whose anvil's even din / Stands symbol for the finer forge / That soundless tugs within, // Refining these impatient ores / With hammer and with blaze, / Until the designated light / Repudiate the forge."

— Dickinson, Emily (1830-1886)