"I'm what's left. Or...maybe I'm all there ever was."
- to Roxas in the Dark Margin."How long has it been since I abandoned that name?"
-to King Mickey after he calls him "Xehanort"."My name is of no importance. What about you? Do you remember your true name?"
— Xemnas's iconic line during his conversation with Roxas."The Keyblade... a truly marvelous weapon. Were it only in more... capable hands."
— to Sora during their first meeting."What a shame... And here I thought we could be friends."
— meeting Sora for the first time in Hollow Bastion."I know nothing of any Kairi. As for Riku... Perhaps you should ask your king."
— to Sora during the battle of Hollow Bastion."Yes... Kingdom Hearts... Rejoice, and feast on these hearts we offer! Shine your pale light on this empty realm... Share your power with all Nobodies!"
— to Kingdom Hearts."I was wondering who would dare interfere with my Kingdom Hearts. And look—here you all are. How convenient for me. Ansem the Wise... You look pathetic."
— meeting with Ansem and the others in the Castle That Never Was."Students do take after their teacher. Only a fool would be your apprentice. After all, none of this would have happened without you. YOU are the source of all heartless. It was your research that inspired me to go further than you ever dared."
— mocking Ansem the Wise, before his device explodes."All that and more. I'm carrying on what you yourself began, and I'm creating a brand new world, one heart at a time. I thought you'd praise me, but all you ever do is hold me back. I understand, though. Unlike me, you have a heart. And you're powerless to control it. Consumed, by the jealousy you feel toward the student who surpassed you."
— to Ansem the Wise, during their conversation."Ohh... my Kingdom Hearts... ruined. Now I'll have to start all over again. Warriors of the Keyblade! Go forth, and bring me more hearts!"
— lamenting over Kingdom Hearts."Denizens of light, answer this: Why do you hate the darkness?"
— trying to deceive Sora, Riku, and Mickey."You accept darkness, yet choose to live in the light. So why is it that you loathe us who teeter on the edge of nothing? We who were turned away by both light and dark—never given a choice?"
— during his speech to Sora, Riku, and Mickey."Very good. You don't miss a thing. I cannot feel... sorrow... No matter what misery befalls the worlds. No matter what you think, what you feel, or how you exist."
— before his first fight."Hear me, Kingdom Hearts! It seems we must begin anew. Ah, but know this: I will give to you as many hearts as it takes. Mark my words! You can no more be complete without me than I without you. Heed me, Kingdom Hearts! Lend me your power, so that we may be complete! The power to erase the fools that hinder us."
— before fusing himself with Kingdom Hearts."Hearts scarred by envy... That fool Ansem said the heart's true nature was beyond his understanding. But it's not beyond mine! Hearts are the source of all power!"
— before fusing himself with Kingdom Hearts."I need... more rage... I need more... hearts..."
— after being defeated for a second time.