Jack Sparrow: William, tell me something. Have you come because you need my help to save a certain distressing damsel? Or rather, damsel in distress? Either one.
Will Turner: No.
Jack Sparrow: Well then you wouldn't be here, would you? So you can't be here. Q.E.D., you're not really here!
Will Turner: No.
Jack Sparrow: Well then you wouldn't be here, would you? So you can't be here. Q.E.D., you're not really here!
Jack Sparrow : William, tell me something. Have you come because you need my help to save a certain distressing damsel? Or rather, damsel in distress? Either one.
Will Turner : No.
Jack Sparrow : Well then you wouldn't be here, would you? So you can't be here. Q.E.D., you're not really here!
http://www.moviequotedb.com/movies/pirates-of-the-caribbean-at-worlds-end/quote_17797.html