Who said "I'm going back to the suit."?

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

I'm going back to the suit. - Iron Man (The Avengers)

"I'm going back to the suit."

Iron Man (The Avengers)

"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."