(Shouting in anger for Vader to fight) "Where is your lightsaber, Lord Vader?! Use your power! Defend yourself!"

(Firm but giving advice) "Are you at loss, my friend? Take heart. Your path is simple. Embrace the Dark Side. Bend it to your will, and it will provide everything you need... Your power will become endless, Lord Vader. And then we shall rule... As one...."

(The classic Emperor Palpatine laugh)