Date: 360 B.C.

"For it does not admit of exposition like other branches of knowledge; but after much converse about the matter itself and a life lived together, suddenly a light, as it were, is kindled in one soul by a flame that leaps to it from another, and thereafter sustains itself."

— Plato (427 BC - 347 BC)

Date: April 6, 1698; 1708

"I hop'd therefore, as I said, to have seen you, and unravel'd to you that which lying in the Lump unexplicated in my Mind, I scarce yet know what it is my self; for I have often had Experience that a Man cannot well judge of his own Notions, till either by setting them down in Paper, or in disco...

— Locke, John (1632-1704)

Date: 1709, 1714

"We may imagine what we please of a substantial solid Part of Beauty: but were the Subject to be well criticiz'd, we shou'd find, perhaps, that what we most admir'd, even in the Turn of outward Features, was but a mysterious Expression, and a kind of shadow of something inward in the Temper."

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

Date: 1737

"I have been lying in wait for my own imagination this week and more, and watching what thoughts came up in the whirl of the fancy, that were worth communicating to you in a letter."

— Pope, Alexander (1688-1744)

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)

Date: January 28, 1753

"I have heard that his understanding was rather hurt by the absolute retirement in which he lived, and indeed he had an imagination too lively to be trusted to itself; the treasures of it were inexhaustible, but for want of commerce with mankind he made that rich oar into bright but useless medal...

— Montagu [née Robinson], Elizabeth (1718-1800)

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)

Date: 1774

"In this journey, the understanding is the 'voiture' that must carry you through; and in proportion as that is stronger or weaker, more or less in repair, your journey will be better or worse; though at best you will now and then find some bad roads, and some bad inns."

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

Date: 1774

"I would pass some of my time in reading, and the rest in the company of people of sense and learning, and chiefly those above me; and I would frequent the mixed companies of men and women of fashion, which, though often frivolous, yet they unbend and refresh the mind, not uselessly, because they...

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

Date: 1774

"The treaty part you must chiefly acquire by reading the treaties themselves, and the histories and memoirs relative to them; not but that inquiries and conversations upon those treaties will help you greatly, and imprint them better in your mind."

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