Raise Your Words Not Your Voice
This is such a profound quote about how we should never resort to yelling whenever we want to make our voice heard. Rather we were to elevate our words and speech to be more compelling and reasonable that even the most staunch opponent can relate to, we will see that our point of view will resonate much more profoundly than merely yelling. The reason for this is two-fold: 1) No one likes being yelled at regardless of how wrong they are and 2) Having to resort to anger or force usually means that we ourselves don't understand the very point we want to get across!
The person behind this very famous saying was a 13th century Islamic scholar, Sufi mystic, and extremely popular poet, Jalal ad-Din Muhammad Rumi. He lived in a time where wars and bloodshed were common place yet he still had the wisdom to realize any war can be avoided if people simply articulated their words and thoughts clearly without forcing them upon anyone. Thus we can all learn from Rumi and always remember to communicate with a sound and calm voice.