Who said "Gratitude is a form of grace."?

This quote is attributed to Madame Manec.

Gratitude is a form of grace. - Madame Manec

"Gratitude is a form of grace."

Madame Manec Gratitude

Character in All the Light We Cannot See

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"Kindness matters, even in small ways."

"We survive by helping one another."

"Faith sustains us when nothing else can."

"Sacrifice is the price of resistance."

"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"