"One of the most powerful things the world shares is the universal smile. A smile can cut through all barriers. It knows no age, gender, color or culture. No matter where you are in the world, what language you speak, or social status, a smile will always be understood. 

"A smile represents something bigger than itself. A smile represents goodwill, affection and openness towards others. It communicates happiness and acceptance. It is one thing that connects and encompasses us all." - Megan Bailey

Article: How a Smile Can Change the World