"...a sharp tongue is the only edged tool that grows keener with constant use."

–Washington Irving, "Rip Van Winkle" (1819)

https://en.wikisource.org/wiki/The_Sketchbook_of_Geoffrey_Crayon_(1819)/Rip_Van_Winkle#:~:text=a%20sharp%20tongue%20is%20the%20only%20edged%20tool%20that%20grows%20keener%20with%20constant%20use.