I found myself this morning thinking of the words "The pen is mightier than the sword," and realized I didn't know who first put those seven words together, so with a click of a key, Wikipedia is there.
"The pen is mightier than the sword" is a metonymic adage coined by Edward Bulwer-Lytton in 1839 for his play Richelieu; Or the Conspiracy. The play was about Cardinal Richelieu, though in the author's words "license with dates and details... has been, though not unsparingly, indulged."[ The Cardinal's line in Act II, scene II, was more fully:
True, This! —