Date: 1791

"If you can but kindle in your mind any strong desire, if you can but keep predominant any wish for some particular excellence or attainment, the gusts of imagination will break away, without any effect upon your conduct, and commonly without any traces left upon the memory."

— Boswell, James (1740-1795)

Date: 1801

Virtue may be a man's "eternal flame" or "ruling passion"

— Blacklock, Thomas (1721-1791)