Who said "I didn't think, I just did it."?

This quote is attributed to Tony Stark.

I didn't think, I just did it. - Tony Stark

"I didn't think, I just did it."

Tony Stark

"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."