Who said "You should always thank people when they help you."?

This quote is attributed to Estelle Costanza.

You should always thank people when they help you. - Estelle Costanza

"You should always thank people when they help you."

Estelle Costanza Gratitude

"You're killin' me, you know that?"

"I'm telling you, the woman is crazy!"

"Frank, you're scaring me!"

"Why are you always yelling?"

"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"