Who said "I could do this all day."?

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

I could do this all day. - Iron Man (The Avengers)

"I could do this all day."

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."