Date: 1775

"Also those phenomena in nature which depend upon gravity, electricity, &c. are no less various and complex; and the more we know of nature, the more particular facts, and particular laws, we are able to reduce to simple and general laws: insomuch that now it does not appear impossible, but that,...

— Priestley, Joseph (1733-1804)

Date: 1789, 1800

"Human Nature's his show-box--your friend, would you know him? / Pull the string, Ruling Passion--the picture will show him."

— Burns, Robert (1759-1796)