Who said "Gratitude is owed only to those who earn it."?

This quote is attributed to Gorr.

Gratitude is owed only to those who earn it. - Gorr

"Gratitude is owed only to those who earn it."

Gorr Gratitude

"All gods are the same. They demand your faith, your worship, your sacrifice."

"I have watched galaxies burn while gods did nothing."

"Your god is a lie, and you worship the lie."

"Eternity is a curse, not a blessing."

"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"