->''"The first rule of {{Fight Club|bing}} is, you do not talk about Fight Club. The second rule of Fight Club is, you do '''not''' talk about Fight Club!"''
-->-- '''Tyler Durden''', ''Film/FightClub''

->''"Masquerade! Paper faces on parade! Masquerade! '''Hide your face so the world will never find you!'''''''
-->-- ''Theatre/ThePhantomOfTheOpera''

->''"Yeah, it sucks having to hide from your food. Yeah, [[ScrewTheRulesIHaveSupernaturalPowers you could take any mortal out without thinking about it]]. When you can take out a few thousand of 'em, then come talk to me. Until then, keep your fucking head down."''
-->-- '''An NPC Nosferatu''', ''TabletopGame/VampireTheRequiem''.

->'''Agent Kay:''' We do '''''NOT''''' discharge our weapons in view of the public!
->'''Agent Jay:''' Hey, we ain't got time for this cover-up [[PrecisionFStrike bullshit]]! Maybe you've forgotten, but there's an Arquillian battle cruiser...
->'''Kay:''' [[TheWorldIsAlwaysDoomed There's]] ''[[TheWorldIsAlwaysDoomed always]]'' [[TheWorldIsAlwaysDoomed an Arquillian Battle Cruiser, or a Corillian Death Ray, or an intergalactic plague that is about to wipe out all life on]] [[InsignificantLittleBluePlanet this miserable little planet,]] and the only way [[{{Muggles}} these people]] can get on with their happy lives is that they '''''[[PunctuatedForEmphasis Do... Not... Know]] about it!'''''
-->-- ''Film/MenInBlack''

->''"Anonymity is Synonymous With Longevity."''
-->--The ArcWords of the Vampires in ''Literature/{{Necroscope}}''. When the final {{Big Bad}}s break these words, things really start going downhill.

->''"You've just seen behind a curtain you weren't even supposed to know existed."''
-->--'''Richardson''', ''Film/TheAdjustmentBureau''

->''"You...better wake up. The world you live in is just a sugar-coated topping. There is '''another''' world, beneath it. The '''real''' world. And if you wanna survive it, you better learn to '''pull''' the '''trigger'''!"''
-->--'''Blade''', ''Film/{{Blade}}''

->''"Are you sure you want to see what's on the other side? Be sure. Say yes, and I'll show you the way to the people who've been hiding themselves from you all along. You'll get one moon, one month. But be sure. Swear it on your name that you won't tell anyone else, or you'll wish you'd never met me."''
-->-- ''TabletopGame/ChangelingTheLost'' corebook, example of the Rose And Thorn oath.

->'''James Edwards:''' Why the big secret? People are smart, they can handle it.
->'''Agent Kay:''' A ''person'' is smart. ''People'' are dumb, panicky, dangerous animals and you know it. 1500 years ago, everybody knew the Earth was the center of the universe. 500 years ago, everybody knew the Earth was flat, and 15 minutes ago, you knew that people were alone on this planet. Imagine what you'll know tomorrow...
-->-- ''Film/MenInBlack''

->The passion of my clan, to be at one with them, and hidden from the world outside.\\
A promise that I keep- \\
I'll never share,\\
I'll never speak,\\
To my grave the secret goes...
-->-- "A Promise That I Keep", by '''Klause White'''

->''Yesterday, my life's like, "Uh oh, pop quiz!" Today it's "rain of toads".''
-->-- '''Xander''', ''Series/BuffyTheVampireSlayer''

->''A world where creatures of ancient myth and gods long thought dead walk unnoticed along the crowded streets of Manhattan. Where ladies of Faerie dance lonely nights away, bathed in soft neon glare.''
-->-- The comic '''Aria''''s blurb

->''We go hideaway in daylight\\
We go undercover, wait out the sun\\
Got a secret side in plain sight\\
Where the streets are empty\\
That's where we run...''
-->-- '''Alesso''', "Heroes"

->"Werewolves can be dangerous if you get in their way, but they'll leave you alone if you are careful. They are very good at hiding their natures from the human population, but I'm not human. I know them when I meet them, and they know me, too..."
-->-- '''Mercy Thompson''', ''Moon Called'''

->"Humans were very stuck in their belief that there was nothing hiding in the darkness, even as those very things slipped up beside them and asked to borrow a cigarette."
-->--"Fred" ''[[Literature/FredTheVampireAccountant Undeath And Taxes]]''

->There is a world beyond the world, a place of magic and mysteries, evils and enchantments, marvels and wonders. And you are never more than a breath away from any of it. Open the right door, walk down the wrong street, and you can find waiting for you every dream you ever had- including all the bad ones. Secrets and mysteries will open themselves to you, if something more or less than human doesn't find you first. Magic is real, and so are gods and monsters.\\
There is a world beyond the world. But some things never change.
-->-- ''Drinking Midnight Wine'', by '''Simon Green'''

->Before we go any further, allow me to tell you that you're getting an unprecedented opportunity here. My kind doesn't talk about itself to you kind - not now and, for the most part, not ever. We've spent five centuries weaving a stage curtain that we call the Masquerade to hide the real show from you, but in the end, it comes down to one simple fact: we vampires don't want you mortals knowing we're out there. It's for the same reason the wolf doesn't want the sheep knowing he's around. It makes our work so much easier.

->'''Nanase''': People cannot ''possibly'' be better off kept in the dark.\\
'''Mr. Verres''': You know that man in the ambulance right now? The man capable of, and having ''already done'', absolutely horrible things? ''[[WhamLine There is]] [[FromNobodyToNightmare NOTHING special about him]]''. He's just an average jerk who, when younger, stumbled on a way to gain use of magic that ''almost anyone on the planet'' could use. You want a real-life, non-hypothetical example of ''why'' there's so much secrecy? It's lying in the back of that ambulance.\\
'''Nanase''': I'm not sure how I feel about that.\\
'''Mr. Verres''': Whatever ''good'' general knowledge of magic could do, the potential ''damage'' is ''more''. Sometimes withholding information is the best thing you can do for people.

->'''Mariana:''' You have this whole other layer of history.\\
'''Robo:''' There's an assumption, I think, that being an [[TheAgeless ageless]] {{super robot}} [[Fiction500 billionaire]] {{mad scientist}} [[IslandBase on a remote island]] makes me feel alone. It doesn't. But sometimes? That layer does.
-->-- ''ComicBook/AtomicRobo''

->One of [[FictionalUnitedNations the Council's]] primary duties is to keep the secret world and the mundane world discrete. Understand, we are not cover-up artists. We are not the enemies of enlightenment. Enlightenment is as vital to society as water is to life. But so too is water corrosive: too much, and it drowns life. Too much, and it rends the earth, destroys entire cities. We are the levy. We are the dam. We are the membrane. We hold back the tidal wave of enlightenment that would wash our world away.
-->--'''Arturo Castiglione''', ''VideoGame/TheSecretWorld''

->'''[[Series/BuffyTheVampireSlayer Buffy]]:''' Okay. All right. Letís admit defeat. Letís just go ahead, call in the troops, and let them raze Sunnydale. I have enough of a time keeping my own activities a secret, Kara. Do you honestly think we can keep the lid on things when the [[Franchise/JusticeLeagueOfAmerica Justice League]] come to town?\\
'''ComicBook/{{Supergirl}}:''' Start making sense.\\
'''Buffy:''' I am! Do you know how strong most peopleís sense of denial is? In some cases, itís the only thing that keeps them going. Look. What do you think would be the effect when people all over the country learn that vampires really exist?\\
'''Supergirl:''' They already know a lot of evil things exist, Buffy. Super-villains, criminals, alien enemies from dozens of planets.\\
'''Buffy:''' True enough. But supposing they learn that there are really things out there in the night that want to kill them, suck their blood, and make them like a recruiting poster with Dracula pointing at Ďem and saying, ĎI Vant Youí?
-->-- ''Fanfic/TheVampireOfSteel''

->'''George:''' Alan... Alan... Just how stupid do you think the average man is, boy?\\
'''Alan:''' (sighing) I don't know, Uncle George. You tell *me*. How stupid *do* I think the average man is?\\
'''George:''' Pretty damn stupid, Alan. For over five hundred years there's been a Franchise/{{Superman}}. Since the Prime Superman of the Twentieth. Everyone knows that. Don't you imagine that the general populace might-- just might, mind you!--have figured out that, by the simplest laws of genetics and mathematics, there *has* to be more than one of us?\\
'''Alan:''' Of course, they know, Uncle George. Most of them. When they think about it. Which isn't often. Uncle George, don't *do* this. Please. Listen to me. As long as we don't rub their faces in it ... as long they see only one of us, a hero, they aren't threatened. It's easy for them to ignore the fact that there have to be others. They can even accept the existence of a ComicBook/{{Superboy}}. Or a ComicBook/{{Supergirl}}. But ... Rao's flames! There are over two hundred of us here! They'd never accept that! Never! You have to think of the Family!
-->-- ''Fanfic/SupermanOf2499TheGreatConfrontation''

->There really are "[[TheseAreThingsManWasNotMeantToKnow things-man-was-not-meant-to-know]]." Ever read [[Creator/HPLovecraft H.P. Lovecraft]]? Your job is to keep people from knowing about the things that could wreck humanity. You perpetrate this fiction not because you're cruel or because you're an enemy of truth, but because [[WellIntentionedExtremist those things could hurt all society]]. Far better that [[{{Muggles}} the Masses]] believe your Truth (with a capital "T") instead. It's safer, it's simpler, and best of all, [[ClapYourHandsIfYouBelieve if enough people accept it, it might as well be real]].
-->--''TabletopGame/MageTheAscension - Guide To The Technocracy''