"Good and evil are but points of view. Many would call me evil for the things I have done, but to myself and to my followers, I am the saviour of the galaxy. I have not shirked from my duty because it is unpleasant or because others will disapprove. I regret the deaths I have caused on this path, but they were necessary to prevent far greater evil. So, Jedi, who are you to say what I do is wrong?"
-Darth Xenus, Emperor of the Sith