Art isn't conclusive. Art is suggestion of something. No small parts, only small actors. We're all clowns. Art is not the truth, but a lie to see the truth.
Art is all about imagination.
Acting is like a dream, don't put yourself in it. You don't have to work at what you are. If scene is going to hold audience, then not actors move, but characters move. The bigger you get the less people will help you with acting. Keen intelligent is an impediment to acting.