Date: 1793

"Amidst the lustful fires he walks: his feet become like brass, / His knees and thighs like silver, & his breast and head like gold."

— Blake, William (1757-1827)

Date: 1794

" The Human Face, a Furnace seal'd / The Human Heart, its hungry Gorge."

— Blake, William (1757-1827)

Date: 1796

"There lux'ry spreads profusion wide, / To glut the iron breast of pride!"

— Robinson [Née Darby], Mary [Perdita] (1758-1800)

Date: 1797

"Man, lost in ignorance and toil, / Becomes associate to the soil, / And his heart hardens like his native rock."

— Smith, Charlotte (1749-1806)

Date: 1800-1803

"And these are the gems of the Human Soul"

— Blake, William (1757-1827)

Date: 1800-1803

"The countless gold of the akeing heart"

— Blake, William (1757-1827)

Date: 1803

"Charms with soft words, and sooths with amorous wiles, / Her iron-hearted Lord,--and Pluto smiles."

— Darwin, Erasmus (1731-1802)

Date: c. 1804-1811, 1818

"For every human heart has gates of brass & bars of adamant, / Which few dare unbar because dread Og & Anak guard the gates"

— Blake, William (1757-1827)

Date: 1804

"The Spectre is the Reasoning Power in Man; & when separated / From Imagination, and closing itself as in steel, in a Ratio / Of the Things of Memory"

— Blake, William (1757-1827)

Date: 1806

"Shall the caprice of nature, the deep tint / Of sultry climes, the feature varying, / Or the uncultur'd mind, endure the scourge / Of sordid tyranny, or heap the stores / Of his fair fellow man, whose ruddy cheek / Knows not the tear of pity; whose white breast / Conceals a heart, than adamant m...

— Robinson [Née Darby], Mary [Perdita] (1758-1800)