Who said "I've learned that gratitude is the beginning of wisdom."?

This quote is attributed to Captain Jack Hanna.

I've learned that gratitude is the beginning of wisdom. - Captain Jack Hanna

"I've learned that gratitude is the beginning of wisdom."

Captain Jack Hanna Gratitude

"You're gonna need a bigger boat."

"Farewell and adieu to you fair Spanish ladies."

"I used to hate the water."

"Some men are coming to kill us and we're gonna kill them first."

"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"