Who said "Gratitude is thanking your customers for their money."?

This quote is attributed to Mr. Krabs.

Gratitude is thanking your customers for their money. - Mr. Krabs

"Gratitude is thanking your customers for their money."

Mr. Krabs Gratitude

"Money, money, money! Ar ar ar ar!"

"I love money."

"The only thing I love more than money is me."

"Ahoy and welcome to the Krusty Krab, where a penny saved is a penny earned!"

"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"