Date: 1651, 1668

"And on the contrary, metaphors, and senseless and ambiguous words, are like ignes fatui; and reasoning upon them is wandering amongst innumerable absurdities; and their end, contention and sedition, or contempt."

— Hobbes, Thomas (1588-1679)

Date: 1687

"This Heart of mine, now wreck'd upon despair, / Was once as free and careless as the Air; / In th' early Morning of my tender years, / E're I was sensible of Hopes and Fears, / It floated in a Sea of Mirth and Ease, / And thought the World was only made to please; / No adverse Wind had ever stop...

— Cutts, John, Baron Cutts of Gowran (1660/1-1707)

Date: 1690, 1694, 1695, 1700, 1706

"GOD I own cannot be denied to enlighten the Understanding by a Ray darted into the Mind immediately from the Fountain of Light"

— Locke, John (1632-1704)

Date: 1691

"As the Eyes are the Windows to let in the Species of all exterior Objects into the dark Cels of the Brain, for the information of the Soul; so are they flaming Torches to reveal to those abroad how the Soul within is moved or affected."

— Ray [formerly Wray], John (1627–1705)