Captain Jean-Luc Picard : You know, there are some words I've known since I was a schoolboy: "With the first link, the chain is forged. The first speech censured, the first thought forbidden, the first freedom denied, chains us all irrevocably." Those words were uttered by Judge Aaron Satie, as wisdom and warning. The first time any man's freedom is trodden on, we're all damaged. I fear that today...

...

Lieutenant Worf : [referring to Admiral Satie] I believed her. I, I helped her. I did not see what she was.

Captain Jean-Luc Picard : Mister Worf, villains who twirl their moustaches are easy to spot. Those who clothe themselves in good deeds are well camouflaged.

Lieutenant Worf : I think... after yesterday, people will not be so ready to trust her.

Captain Jean-Luc Picard : Maybe. But she, or someone like her, will always be with us, waiting for the right climate in which to flourish, spreading fear in the name of righteousness. Vigilance, Mister Worf - that is the price we have to continually pay.