I don't want people to know what I'm actually like. It's not good for an actor.

Just let the wardrobe do the acting

Once you've been really "bad" in a movie, there's a certain kind of fearlessness you develop

If you really do want to be an actor who can satisfy himself and his audience, you need to be vulnerable. [You must] reach the emotional and intellectual level of ability where you can go out stark naked, emotionally, in front of an audience.

An actor is supposed to be a sensitive instrument. Isaac Stern takes good care of his violin. What if everyone jumped on his violin?

If I wasn't an actor, I'd be a secret agent.