Date: 1699

"I justified my use of the word Spirit in that Sense from the Authorities of Cicero and Virgil, applying the Latin word Spiritus, from whence Spirit is derived, to the Soul as a thinking Thing, without excluding Materiality out of it. To which your Lordship replies,*That Cicero, in his Tusculan Q...

— Locke, John (1632-1704)

Date: 1709, 1714

"They may perhaps be Monsters, and not Divinitys, or Sacred Truths, which are kept thus choicely, in some dark Corner of our Minds: The Specters may impose on us, whilst we refuse to turn 'em every way, and view their Shapes and Complexions in every light."

— Cooper, Anthony Ashley, third earl of Shaftesbury (1671-1713)

Date: August 18, 1716; 1735

"If Momus’s project had taken, of having windows in our breasts, I should be for carrying it further, and making those windows casements: that while a man showed his heart to all the world, he might do something more for his friends, e’en take it out, and trust to their handling."

— Pope, Alexander (1688-1744)

Date: 1737

"The old project of a window in the bosom, to render the Soul of man visible, is what every honest friend has manifold reason to wish for; yet even that would not do in our case, while you are so far separated from me, and so long."

— Pope, Alexander (1688-1744)

Date: 1774

"Let me, therfore, most earnestly recommend to you, to hoard up, while you can, a great stock of knowledge; for though, during the dissipation of your youth, you may not have occasion to spend much of it; yet, you may depend upon it, that a time will come, when you will want it to maintain you. P...

— Stanhope, Philip Dormer, fourth earl of Chesterfield (1694-1773)