Transparency in Government
“If you tell a lie big enough and keep repeating it, people will eventually come to believe it. The lie can be maintained only for such time as the State can shield the people from the political, economic and/or military consequences of the lie. It thus becomes vitally important for the State to use all of its powers to repress dissent, for the truth is the mortal enemy of the lie, and thus by extension, the truth is the greatest enemy of the State.” - attributed to Joseph Goebbels (I can't find the original source)
"If you've retired, you don't have anything to worry about -- third time I've said that. (Laughter.) I'll probably say it three more times. See, in my line of work you got to keep repeating things over and over and over again for the truth to sink in, to kind of catapult the propaganda. (Applause.)" - President George W. Bush, May 24, 2005 (Athena Performing Arts Center, Rochester, NY) link to transcript at the White House website.
(also reminds me of: "This is how liberty dies; to thunderous applause." - Padmé Amidala in "Revenge of the Sith")