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)