Date: 1665

"But as though grains of Sand and Ashes be a part, but of a despicable smallness, and very easie, and liable to be scatter'd, and blown away; yet the skilful Artificer, by a vehement Fire, brings Numbers of these to afford him that noble substance, Glass, by whose help we may both see our selves,...

— Boyle, Robert (1627-1691)

Date: 1690, 1694, 1695, 1700, 1706

"I shall not here enquire, though it may seem probable, that the Constitution of the Body does sometimes influence the Memory; since we oftentimes find a Disease quite strip the Mind of all its Ideas, and the flames of a Fever, in a few days, calcine all those Images to dust and confusion, which ...

— Locke, John (1632-1704)

Date: 1750

"A mind in wisdom old, in lenience young, / From fervent truth where every virtue sprung; / Where all was real, modest, plain, sincere; / Worth above show, and goodness unsevere: / View'd round and round, as lucid diamonds throw / Still as you turn them a revolving glow, / So did his mind reflect...

— Thomson, James (1700-1748)

Date: w. 1782, 1786, 1816

"Having uttered this exclamation, Soliman raised his hands towards heaven, in token of supplication; and the Caliph discerned through his bosom, which was transparent as crystal, his heart enveloped in flames."

— Beckford, William (1760-1844)