Who said "Hard work is the foundation of any achievement."?

This quote is attributed to Irwin.

Hard work is the foundation of any achievement. - Irwin

"Hard work is the foundation of any achievement."

Irwin Work

"Nergal's my best friend!"

"I'm a little Jewish boy with a big heart!"

"Gee, that's swell!"

"I love my mommy and daddy!"

"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."