Beware of the dark side.

Dark Side of the Rainbow

[But the digital effects have a flip side. After Yoda became CG,] I missed the interaction with actors, the physicality, ... But . . . Yoda's fights and floating on air would have been impossible with a puppet. And since so many new characters were digital, a puppet among them would have been jarring.

There's a dark side to everything.

Yes, a Jedi's strength flows from the Force. But beware of the dark side. Anger, fear, aggression; the dark side of the Force are they. Easily they flow, quick to join you in a fight. If once you start down the dark path, forever will it dominate your destiny, consume you it will, as it did Obi-Wan's apprentice.

Remember, a Jedi's strength flows from the Force. But beware. Anger, fear, aggression. The dark side are they. Once you start down the dark path, forever will it dominate your destiny. Luke... Luke... do not... do not underestimate the powers of the Emperor or suffer your father's fate you will. Luke, when gone am I... the last of the Jedi will you be. Luke, the Force runs strong in your family. Pass on what you have learned, Luke. There is... another... Sky... walker.