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• You've brought shame to this family, Cecil. Oh, I don't relish having to write the Christmas letter this year.
  -- Sideshow Bob, "The Brother From Another Serie...
• Bob: You can't do this! I saved the children's lives, I'm a hero!
  Cecil: [craftily] Tell them they'll live to regret this....
• Cecil: At last I'm going to do what Bob never could.
  Kill Bart Simpson! Bart: Throwing me off a dam?...
• Bob: You do know I used to have a...problem with trying to kill people.
  Cecil: Goodness! I had no idea! For you see, I have been on Mars for the past decade, in a cave with my eyes shut, and my fingers in my ears....
• Cecil: I forgot to mention, I'm planning to blow up the dam with you inside.
  Bob: Well, obviously. -- "The Brother From Another Serie...
• Cecil: I'm framing you and I'm doing a really excellent job, too.
  Bob: Wait a minute. This is all because I got to be Krusty's sidekick instead of you, isn't it?...
• Bob: Well, I suppose I should ask you what you do if I'm to be working with you.
  Cecil: _For_ me, Bob. _For_ me. I am Springfield's chief hydrological and hydrodynamical engineer....
• Lisa: Oh, it's hopeless, utterly, utterly hopeless.
  Bob: Oh, I see. When it's one of _my_ evil schemes, you can't foil it fast enough, but when _Cecil_ tries to kill you, it's [imitating her] hopeless, utterly, utterly hopeless....
• Cecil: There it is, the future site of the Springfield hydroelectric dam.
  Bob: Just the thought of all that raw power makes me wonder why the hell I should care....