Date: 1762

"A Scythian's heart is steel'd 'gainst panic terrors."

— Cradock, Joseph (1742-1826)

Date: 1762

"Gods, steel my injur'd heart!"

— Cradock, Joseph (1742-1826)

Date: 1792

"Men!--Men! false! treacherous crocodiles! Your eyes are water! your hearts are iron!"

— Tytler, Alexander Fraser (1747-1813); Schiller (1759-1805)

Date: 1792

"The tears, the supplications of his father, never reach'd his iron heart.-- "

— Tytler, Alexander Fraser (1747-1813); Schiller (1759-1805)

Date: 1795, 1796

The "anvil of gnawing conscience is never cool"

— Timaeus, J. J. (1763-1809); Friedrich von Schiller (1759-1805)

Date: 1799

"Men, Men! false, treacherous crocodiles! Your eyes are water--your hearts are iron."

— Craven, Keppel (1779-1851); Schiller (1759-1805)

Date: 1799

"I fell at his feet, embrac'd his knees, and wept; conjur'd him, supplicated; the tears, the supplications of his father, never reach'd his iron heart"

— Craven, Keppel (1779-1851); Schiller (1759-1805)

Date: 1799

"Ignorance has set her stamp upon him--his mind seared to every virtuous impression--his heart flint, and his temper moved by the slightest breath"

— West, Matthew (d. 1814); Kotzebue (1761-1819)