“You killed her because, finally, when you could have savedher, when you could have gone awaywith her, when you could have been thinkingabout her, you were thinking about yourself. It is in this blazing moment that you finally understand the trap of the dark side, the final cruelty of the Sith ― because now your self is all you will ever have.” ― Matthew Stover, Revenge of the Sith novelization