Who said "I've got to go to work on this."?

This quote is attributed to Iron Man (The Avengers).

I've got to go to work on this. - Iron Man (The Avengers)

"I've got to go to work on this."

Iron Man (The Avengers) Work

"I am Iron Man."

"Genius, billionaire, playboy, philanthropist."

"If you're nothing without the suit, then you shouldn't have it."

"I've successfully privatized world peace."

"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."