Why do you think film makers employ scriptwriters to write dialogs? Why can't anybody write an ad copy? Why do writers spend hours polishing the language of their texts? Why do our political leaders and heads of nations depend on speechwriters to write what they want to say to their followers? That's because words matter! Words are powerful tools that can stir emotions and rouse crowds to action. A cheery "hello" breaks the ice. A heartfelt "how are you" is the start of many lasting relationships. A sincere "sorry" mends broken hearts. And think of all the great political speeches delivered throughout the centuries. Those words have led entire nations to war and ushered in social revolutions. Words are so powerful that they can change the way the brain perceives to make us act and feel.