The pen is mightier than the sword

Possible interpretation: This proverb suggests that written material like books or poetry has more influence than fighting or war. We may also understand from it that ideas (as often set down in writing) are more effective than violence.

Note: pen (noun) = a tool or instrument for writing | mighty (mightier, mightiest) (adj.) = very powerful | sword (noun) = a long, sharp, heavy weapon, like a very large knife