Date: 1750, 1752

"Whether the Mind, like Soil, doth not by Disuse grow stiff; and whether Reasoning and Study be not like stirring and dividing the Glebe?"

— Berkeley, George (1685-1753)

Date: 1760-1761, 1762

"A mind too vigorous and active, serves only to consume the body to which it is joined, as the richest jewels are soonest found to wear their settings."

— Goldsmith, Oliver (1728?-1774)

Date: 1766

"Perhaps I may catch up even one from the gulph, and that will be great gain; for is there upon earth a gem so precious as the human soul?"

— Goldsmith, Oliver (1728?-1774)

Date: 1766

"We should then find that creatures, whose souls are held as dross, only wanted the hand of a refiner; we should then find that wretches, now stuck up for long tortures, lest luxury should feel a momentary pang, might, if properly treated, serve to sinew the state in times of danger."

— Goldsmith, Oliver (1728?-1774)