Who said "Gratitude opens doors that no key can unlock."?

This quote is attributed to Indy.

Gratitude opens doors that no key can unlock. - Indy

"Gratitude opens doors that no key can unlock."

Indy Gratitude

"It's not the years, honey, it's the mileage."

"Fortune and glory, kid."

"Snakes. Why'd it have to be snakes?"

"That's how we archaeologists tell time."

"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"