Who said "To give is to gain more than you could ever take"?

This quote is attributed to Drogo.

To give is to gain more than you could ever take - Drogo

"To give is to gain more than you could ever take"

Drogo Gratitude

"I am the stallion who mounts the world"

"A Dothraki hears a word and takes it as a command"

"You are of my blood. That is enough"

"I will take what is mine with fire and blood"

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"