Who said "Work hard make Elmo feel proud and good!"?

This quote is attributed to Elmo.

Work hard make Elmo feel proud and good! - Elmo

"Work hard make Elmo feel proud and good!"

Elmo Work

"Elmo loves goldfish! Goldfish is Elmo's friend."

"Elmo thinks everybody can be smart if they try hard."

"Elmo is happy! Elmo loves being happy!"

"Elmo believes in you! You can do anything!"

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."