Date: 1737

"You see 'tis with weak heads as with weak stomachs, they immediately throw out what they received last; and what they read floats upon the surface of their mind, like oil upon water, without incorporating."

— Pope, Alexander (1688-1744)

Date: January 1739

"The attention is on the stretch; the posture of the mind is uneasy; and the spirits being diverted from their natural course, are not governed in their movements by the same laws, at least not to the same degree, as when they flow in their usual channel."

— Hume, David (1711-1776)