Date: 1748

"These be now my Cares, / To leave the Muse for Virtue [...] but chief my Soul to steel / With adamantine Honour"

— Warton, Thomas, the elder (1688-1745)

Date: 1749

"Not all the Gems, which Indian Mines prepare, / Can with that Ruby in thy Soul compare: / Its bright'ning Blaze like Aaron's Breast shall shine, / Alike refulgent, and alike divine"

— Jones, Henry (1721-1770)

Date: 1749

"Happy soul, as silver tried, / Silver seven times purified, / Love hath broke the rock of stone, / All thy hardness melted down"

— Wesley, John and Charles

Date: 1749

"Yes; our soul the iron enters, / Sin is perfect misery"

— Wesley, John and Charles

Date: 1749

"Though I have steel'd my stubborn heart"

— Wesley, John and Charles

Date: 1749

"From all idolatrous excess, / From earthly dross refine, / And on my simple heart impress / The character Divine"

— Wesley, John and Charles

Date: w. 1742-1750, 1803

"Ne ought with him availeth sexe or age; / Ne hoary elde, ne tender infant's cries / Can melt his iron heart in any wise"

— Cambridge, Richard Owen (1717-1802)

Date: 1751

Religion shall "Shall purge their Minds from all impure Allays / Of sordid Selfishness and brutal Sense,"

— West, Gilbert (1703-1756)

Date: 1751, 1774

"Her heart pursued spite with black intent, / Ne could her iron mind at human woes relent."

— Lloyd, Robert (bap. 1733, d. 1764)

Date: 1753

Inspiration "lifts the Heart on Raptures all refin'd, / And leaves its mortal Dross far, far behind"

— Jones, Henry (1721-1770)