Date: 1690, 1694, 1695, 1700, 1706

"I shall not here enquire, though it may seem probable, that the Constitution of the Body does sometimes influence the Memory; since we oftentimes find a Disease quite strip the Mind of all its Ideas, and the flames of a Fever, in a few days, calcine all those Images to dust and confusion, which ...

— Locke, John (1632-1704)

Date: 1786

"'Remember,' concluded he, 'that the solitary mortal is certainly luxurious, probably superstitious, and possibly mad: the mind stagnates for want of employment, grows morbid, and is extinguished like a candle in foul air.'"

— Piozzi, [née Salusbury; other married name Thrale] Hester Lynch (1741-1821)