the pen is mightier than the sword

The pen is mightier than the sword is a phrase that was originally coined in 1839 by Edward Bulwer-Lytton who wrote the play Richelieu; Or the Conspiracy. The phrase refers to the fact that the words you say or write are much more powerful than fighting in the physical way. It shows the importance of being a writer, or being truthful when speaking of it literally, rather than physical violence.