Consistency is the death of good acting.

Competition [in a scene] is healthy. Competition is life. Yet most actors refuse to acknowledge this. They don't want to compete. They want to get along. And they are therefore not first-rate actors.

Humor [in a scene] is not jokes. It is that attitude toward being alive without which you would long ago have jumped off the 59th Street Bridge.

An actor must make his needs (goals, wants, objectives) so strong that he is willing to interfere with the other actor in order to get what he needs. Interfering means getting in their way so that what you want is stronger than what they want.

Take nothing for granted. Make an emotional discovery as often as you can find one in every scene. Ask yourself: What is new?

Humor is an attitude, a survivor’s way of looking at life. It’s not about telling jokes.

Most actors make themselves unhappy by searching for their sanity, by insisting on their normalcy; it's a grave mistake.