DS9: The Maquis: Part 2
Gul Dukat: In Cardassia, the verdict is always known before the trial begins; and it’s always the same.
Sisko: In that case, why bother with a trial at all?
Gul Dukat: Because the people demand it. They enjoy watching justice triumph over evil, every time. They find it comforting.
Sisko: Isn’t there ever a chance you might try an innocent man by mistake?
Gul Dukat: Cardassians don’t make mistakes.
Sisko: I’ll have to remember that.
Gul Dukat: Why? Because Vulcans don’t lie?
Sisko: As a rule, they don’t.
Gul Dukat: They don’t blow up ships either, as a rule.
(I do not know why but I like Gul Dukat :P)
Gul Dukat is a fucking awesomevillain. The man is ruthless and conniving and hypocritical and just maniacal at times. And then in the final season he has cosmetic surgery to become one of the very people he so ruthlessly oppressed his whole career. He wins all of the awards for fucked-up-edness.