"Let me introduce you to Ceti Alpha V's last remaining indigenous lifeform."
"I've done more than kill you. I've hurt you. And I wish to go on...hurting you. I shall leave you as you left me. As you left her. Marooned for all eternity in the center of a dead planet. Buried alive... Buried alive... Buried alive..."
"I have deprived your ship of power, and when I swing around, I mean to deprive you of your life. But I wanted you to know who it was who had beaten you."
and of course...
"Revenge is a dish best served cold. It is very cold...in space."