Date: 1707, 1710

"But now I come to cure my fond Disease; / This Steel thy flinty Breast will surely please."

— Cobb, Samuel (bap. 1675, d. 1713)

Date: 1728

Death is an "iron-hearted, and of cruel soul, / Brasen his breast, nor can he brook controul, / To whom, and ne'er return, all mortals go, / And even to immortal gods a foe"

— Cooke, Thomas (1703-1756)

Date: 1728, 1740

"Savage their nature, and their hearts of stone; / Their houses brass, of brass the warlike blade"

— Cooke, Thomas (1703-1756)

Date: 1735

"Impenetrable Courage steels his manly Breast"

— Hughes, John (1678?-1720)

Date: 1745

"Thrice shou'd Rebellion rear her Head, / With Front of Brass, but Heart of Lead"

— Whaley, John (bap. 1710, d. 1745)

Date: 1745

"Thou'lt weep, I know thy gentle Soul, my Fair, / No senseless Steel, no rugged Flint dwells there."

— Whaley, John (bap. 1710, d. 1745)

Date: 1788

"When Passion's tides thro' mans' strong art'ries roar, / His heart resists them like a flinty shore; / But our frail frames, like mould'ring banks, give way."

— Williams, John [pseud. Anthony Pasquin] (1754-1818)

Date: 1791

"I have a mind more equal, not of steel / My heart is form'd, but much to pity inclined."

— Cowper, William (1731-1800)

Date: 1791

"My son! oh how could so severe a word / Escape thy lips? my fortitude of mind / Thou know'st, and even now shalt prove me firm / As iron, secret as the stubborn rock."

— Cowper, William (1731-1800)

Date: 1791

"Thou hast an iron heart! / For should that savage man and faithless once / Seize and discover thee, no pity expect / Or reverence at his hands"

— Cowper, William (1731-1800)