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

This quote is attributed to Leibniz, Gottfried.

Gratitude is the memory of the heart. - Leibniz, Gottfried

"Gratitude is the memory of the heart."

Leibniz, Gottfried Gratitude

Philosopher-Mathematician German 1646–1716

"There is nothing in the intellect that was not first in the senses, except the intellect itself."

"The present is pregnant with the future."

"Nature never makes jumps."

"God is in the details."

"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"