Date: 1780

Reason's subjects work and return home with "treasures fraught" and display before their queen their "shining spoils, which are laid up in "mental stores."

— Steele, Anne (1717-1778)

Date: 1817

"When some bright thought has darted through my brain: / Through all that day I've felt a greater pleasure / Than if I'd brought to light a hidden treasure."

— Keats, John (1795-1821)