Who said "I can't rest. There is too much work to be done."?

This quote is attributed to Tony Stark.

I can't rest. There is too much work to be done. - Tony Stark

"I can't rest. There is too much work to be done."

Tony Stark Work

"I am Iron Man."

"Genius, billionaire, playboy, philanthropist."

"Sometimes you gotta run before you can walk."

"I'm not saying I'm Batman. I'm just saying nobody's ever seen me and Batman in the same room."

"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."