Yoda and Luke.
"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. “