Who said "Not enough people say thank you anymore."?

This quote is attributed to Jerry Seinfeld.

Not enough people say thank you anymore. - Jerry Seinfeld

"Not enough people say thank you anymore."

Jerry Seinfeld Gratitude

Comedian and Actor American Born 1954 (age 72)

"These pretzels are making me thirsty."

"Not that there's anything wrong with that."

"Yada yada yada."

"Master of your domain."

"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"