Date: 1748, 1777

"They [these impressions] are not only placed in a full light themselves, but may throw light on their correspondent ideas, which lie in obscurity."

— Hume, David (1711-1776)

Date: 1748, 1754

"[T]his Perception is not a Creature of the Mind, but a Ray emanating directly from the Father of Lights, a fair genuine Stamp of his Hand, who impressed every vital and original Energy on the Mind"

— Fordyce, David (bap. 1711, d. 1751)

Date: 1748, 1754

"[T]he Relation we stand in to God, will irradiate the Mind with the Light of Wisdom, and ennoble it with the Liberty and Dominion of Virtue."

— Fordyce, David (bap. 1711, d. 1751)

Date: w. 1740, 1748

"Thirsting for Knowledge, but to know the right, / Thro' judgment's optick guide th' illusive sight, / To let in rays on Reason's darkling cell, / And Prejudice's lagging mists dispel."

— Walpole, Horatio [Horace], fourth earl of Orford (1717-1797)

Date: 1748, 1749

"I always use the word imagine, because I am of the opinion that everything is imagined, and that all the parts of the soul may be justly reduced to the imagination only, which forms them all; and thus the judgment, reason, and memory are not absolute faculties of the soul, but real modifications...

— Julien Offray de La Mettrie (1709-1751)

Date: 1748, 1749

"Have we one argument of this sort to convince us that man alone is enlighten'd with the rays of reason, from which all other creatures are excluded?"

— Julien Offray de La Mettrie (1709-1751)

Date: 1749

"Yet should thy Soul indulge the gen'rous Heat, / Till captive Science yields her last Retreat / Should Reason guide thee with her brightest Ray, / And pour on misty Doubt resistless Day; / Should no false Kindness lure to loose Delight, / Nor Praise relax, nor Difficulty fright; / Should temptin...

— Johnson, Samuel (1709-1784)

Date: 1749

"His clouded Soul now darts no dazling Ray, / And faintly warms the animated Clay: / Not Rome's sad Ruins such Impressions leave, / As Reason bury'd in the Body's Grave:"

— Jones, Henry (1721-1770)

Date: 1750

A heart may be "as true as the sun"

— Jemmat [née Yeo], Catherine (bap. 1714, d. 1766?)

Date: November 10, 1750

"Is it that a long commerce with the world does indeed corrupt the heart; and extinguish by degrees those sparks of light, those inclinations to good, which were implanted in our minds?"

— Mulso [later Chapone], Hester (1727-1801)