Who said "Gratitude is the memory of the heart."?

This quote is attributed to Jean Valjean.

Gratitude is the memory of the heart. - Jean Valjean

"Gratitude is the memory of the heart."

Jean Valjean Gratitude

Character in Les Misérables

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"I am the master of my fate, I am the captain of my soul."

"The only real prison is fear, and the only real freedom is freedom from fear."

"Compassion is not weakness."

"The night is friendly."

"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"