Lead the audience by the nose to the thought.
Have a very good reason for everything you do.
What is acting but lying and what is good lying but convincing lying?
My stage successes have provided me with the greatest moments outside myself, my film successes the best moments, professionally, within myself.
Acting is illusion, as much illusion as magic is - and not so much a matter of being real.
Don't be afraid to be outrageous; the critics will shoot you down anyway.