Who said "Gratitude is the mark of a noble heart."?

This quote is attributed to Hulk King.

Gratitude is the mark of a noble heart. - Hulk King

"Gratitude is the mark of a noble heart."

Hulk King Gratitude

"I am the king of this place. What are you?"

"Strongest one there is, that's what they call me."

"You are strong. For a small person."

"But I am strongest one there is!"

"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"