[[folder:Anime and Manga]]

->Kill the spiders and save the butterflies... it's rational until you realize that by striving for it, you become a spider yourself.
-->--'''Vash the Stampede''', ''{{Trigun}}''

->No matter how strong, for a human to fight a monster means he has submerged his humanity and transformed himself into a greater monster.
-->-- '''Schierke''', ''{{Manga/Berserk}}''

-> '''Awakened Being''': You know... you're the monster... here...\\
'''Ophelia''': Heh. ''[Kills the Awakened Being]''
-->-- ''{{Manga/Claymore}}''

->You can't change anything unless you can discard part of yourself too. To surpass monsters, you must be willing to abandon your humanity.
-->-- '''Armin Arlert''', ''Manga/AttackOnTitan''

->'''Knuckle Joe''': He wasn't a father. He was a weakling.\\
'''Meta Knight''': Good. I am glad. That way, he will not have to see what a monster you have become.\\
'''Knuckle Joe''': What? I am not a monster!\\
'''Meta Knight''': Anyone who abandons his reason, and lives only by hatred, is a monster!\\
'''Knuckle Joe''': Grrr...\\
'''Tiff''': What we do makes us all monsters. Look what you did to Kirby.\\
'''Knuckle Joe''': But I am not a monster!\\
'''Meta Knight''': But you lived by hatred. And hatred is what eNeMeE (Nightmare) loves.
-->-- ''Anime/KirbyRightBackAtYa, Episode 19/17''

->Nah. I'd say it's more a case of a straightforward, honest guy being twisted into a monster by the pressures of society. You know, the old become-the-very-thing-you're-trying-to-fight deal.
-->-- '''Haruna''', ''MahouSenseiNegima''


[[folder:Comic Books]]

->I'm afraid that the Joker may be right about me. Sometimes I.... question the rationality of my actions. And I'm afraid that when I walk through those asylum gates... when I walk into Arkham and the doors close behind me... It'll be just like coming home.
-->--'''Batman''', ''ComicBook/ArkhamAsylumASeriousHouseOnSeriousEarth''

->Who could have foreseen this in their wildest imaginings? Of all the {{Green Lantern}}s, of all the protectors of the universe... it is [[TheParagonAlwaysRebels their brightest who turns rogue.]]
-->--'''{{SelfDemonstrating/Sinestro}}''', ''Green Lantern #49''

->The meek shall inherit [[HobbesWasRight sweet fuck-all.]] That's what I learned from them sadistic little shits, the Jesuits.
-->-- '''Lincoln Red Crow''', ''{{ComicBook/Scalped}}''



->No, John. You are the demons.
-->-- '''Unknown Radio Voice''', ''Doom: Repercussions of Evil''


[[folder:Film -- Live-action]]

->You have a right to kill me. You have a right to do that. But you have no right to judge me. It's impossible for words to describe what is necessary to those who do not know what horror means. Horror... horror has a face. And you must make a friend of horror. Horror and moral terror are your friends. If they are not, then they are enemies to be feared. They are truly enemies.
-->--'''Col. Walter E. Kurtz''', ''Film/ApocalypseNow''

->You either die a hero, or you live long enough to see ''yourself'' become the villain.
-->-- '''Harvey Dent''', ''Film/TheDarkKnight''

->You have allowed this dark lord to [[TheCorrupter twist your mind]] until now you have become the very thing you swore to destroy.
-->-- '''Obi-Wan Kenobi''', ''Film/StarWars: Film/RevengeOfTheSith''

->Revenge is like a poison. It can -- it can take you over. Before you know it, turn us into something ugly.
-->-- '''Aunt May''', ''Film/SpiderMan3''



->You, therefore, have no excuse, you who [[WhatTheHellHero pass judgement on someone else]], for at whatever point you judge the other, [[HoistByHisOwnPetard you are condemning yourself]], [[NotSoDifferent because you who pass judgement do the same things.]]
-->-- '''Paul''', ''Literature/TheBible (New International Version)'', Romans 2:1

->The creatures outside looked from pig to man, and from man to pig, and from pig to man again; but already it was impossible to say which was which.
-->-- Closing line of ''Literature/AnimalFarm'' by '''Creator/GeorgeOrwell'''

->'Fool that I am,' said he, 'that I did not tear out my heart the day I resolved to revenge myself.'
-->--'''Creator/AlexandreDumas''', ''Literature/TheCountOfMonteCristo''

->Maybe he was a good man once. [[WarIsHell But you fight any war long enough]] and in the end it's going to be hard to remember who you are. He's had too much blood. And maybe too much sand. I'd say he's become everything he set out to defeat.
-->-- '''Richard''' about '''Tarik''', ''[[Literature/ThePowerOfFive Oblivion]]''

->Justice." Thoros smiled wanly. "I remember justice. It had a pleasant taste. Justice was what we were about when Beric led us, or so we told ourselves. We were King's men, knights, and heroes . . . but some knights are dark and full of terror, my lady. War makes monsters of us all.\\\
"Are you saying you are monsters?\\\
"I am saying we are human."
-->-- '''Thoros of Myr''', ''Literature/AFeastForCrows''


[[folder:Live-action TV]]

->You're here because John Mostow [[ThatOneCase stole three years of your life]]. Every day and every night for three years you lived and breathed the horror show that was in his head, and I'm sorry. Imagining everything that he imagined. Sinking deeper and deeper into the ugliness like you taught us to do. When you finally caught him, it didn't just go away. And the violence... it stayed alive inside you. 'Til it had to come out.
-->--'''''Series/TheXFiles''''' "Grotesque"

->And what about my team? How many more times will they be able to look into the abyss? How many more times before they won’t ever recover the pieces of themselves that this job takes?
-->--Part of '''Hotch''''s voiceover in the final scene, ''Series/CriminalMinds'', "...And Back" (season four finale)

->'''[[TheHero 9th Doctor]]:''' The Daleks have ''failed''. Now finish what I started and make your race extinct. Rid the universe of your filth! [[WhyWontYouDie WHY DON'T YOU JUST]] '''''[[WhyWontYouDie DIE?!!]]'''''\\
'''[[LastOfHisKind Dalek]]:''' [[AC:...You would make a good Dalek.]]
-->-- ''Series/DoctorWho'', [[Recap/DoctorWhoS27E6Dalek "Dalek"]]



->''All my enemies are becoming my teachers''
-->--"Truth", '''Alexander'''

->''I was born of the womb of a poisonous spell\\
Beaten and broken and chased from the land\\
But I rise up above it, high up above it and see\\
I was hung from the tree made of tongues of the weak\\
The branches, the bones of the liars, the thieves\\
Rise up above it, high up above it and see\\
Pray to your God, open your heart\\
Whatever you do, don't be afraid of the dark\\
Cover your eyes, the devil's inside\\
One night of the hunter\\
One day I will get revenge\\
One night to remember\\
One day it'll all just end, oh\\
Blessed by a bitch from a bastard's seed\\
Pleasure to meet you, prepare to bleed\\
Rise, I'll rise, I'll rise\\
Skinned her alive, ripped her apart\\
Scattered her ashes, buried her heart\\
Rise up above it, high up above it and see''
-->-- "[[http://www.youtube.com/watch?v=zK268TLKCK4 Night of the Hunter]]", '''[[Music/ThirtySecondsToMars 30 Seconds To Mars]]'''

->''Grab the bull by the horns the old adage goes\\
Nobody tells you where to go from there\\
Seems like fate's pulling you\\
Decisions have to be made\\
The best path is the hardest earned\\
Back and forth the struggle consumes us all\\
Trying to keep a level head\\
In the most unsettling of times\\
Today I'll become the bull.''
-->-- "[[http://www.youtube.com/watch?v=1FCyvV5V8Jo Becoming The Bull]]", '''Music/{{Atreyu}}'''

->''So far forever now alone, a greater punishment on me has been imposed\\
A killer falling from the light, I'll miss my family, I'll never be alright''
-->-- "[[http://www.youtube.com/watch?v=oxsFtCSOJyc Strength of the World]]", '''Music/AvengedSevenfold'''

->''They say that what you mock\\
Will surely overtake you\\
And you become a monster\\
So the monster will not break you''
-->--[[http://www.youtube.com/watch?v=RhmS-uRG9qc "Peace on Earth"]], '''Music/{{U2}}'''

->''I'm about to do it your way\\
I will make your world unsafe\\
I never thought you'd get this far\\
It's insane''
-->--"[[http://www.youtube.com/watch?v=HDKBeSMEBlk Murder]]", '''Music/WithinTemptation'''

->''In a soldier's stance, I aimed my hand\\
At the mongrel dogs who teach\\
Fearing not I'd become my enemy\\
In the instant that I preach''
-->--"My Back Pages", '''Music/BobDylan'''

I wanna go home.\\
Take off this uniform\\
And leave the show.\\
But I'm waiting in this cell''
->''Because I have to know\\
Have I been guilty all this time?''
-->--''[[http://www.youtube.com/watch?v=lk2x0dbnuPs Stop]]'', ''Music/TheWall'', '''Music/PinkFloyd'''

->''If you stare into the dark, the dark will stare back\\
-->--"Bangers and Mash", '''Music/{{Radiohead}}'''

->''I rambled with the worst of them, fell in love with a harlequin\\
Saw the darkest hearts of men\\
And I saw myself staring back again''
-->--"Bartholomew", '''The Silent Comedy'''


[[folder:Video Games]]

->As long as there is hatred, anyone can become a demon.
-->--'''[[spoiler:Oersted]] aka Odio''', ''VideoGame/LiveALive''

->I have become the beast.
-->--[[spoiler:'''Cole [=MacGrath=]''']], ''[[VideoGame/{{Infamous2}} inFamous 2]]''

->Men have this idea that [[LetsFightLikeGentlemen we can fight with dignity,]] that there's a proper way to kill someone. It's absurd, it's an aesthetic: we need it to endure the bloody horror of murder. You must destroy that idea: show 'em what a terrible, messy thing it is to kill a man, and then show 'em that you relish in it. Shoot to wound then execute the wounded, burn 'em, take them in close combat; destroy their pre-conceptions of what a man is and you'll become their personal monster. When they fear you, you become stronger, you become better, but let's never forget that it's a display, it's a posture, like a lion's roar or a gorilla thumping at his chest. If you lose yourself in the display, if you succumb to the horror, then you become the monster. You become reduced, not more than a man, but less... And that can be fatal.
-->-- '''The Jackal''', ''VideoGame/FarCry2''

->'''Miller:''' Cipher sent us to hell - but we're going even deeper - take back everything that we've lost!\\
'''[[ProtagonistJourneyToVillain Big Boss]]:''' Kaz... [[HeelRealization I'm already a demon]]...

->Be careful out there Liara. Don't turn into the thing you're hunting.
-->--'''Commander Shepard''' to '''Liara T'Soni''' during her hunt for the Shadow Broker, ''VideoGame/MassEffect2''

->What have you become, when even nightmares fear you?
-->-- '''Nessa''', to the PlayerCharacter, ''VideoGame/PathOfExile''

->There is blood on my hands, how long till it lies on my heart?
-->-- '''Denam Pavel''', ''Tactics Ogre: Let Us Cling Together''

If I kill the monster, do I become the monster? [[SubvertedTrope OH, I HOPE SO!]]
-->-- Multiple Uruk Captains [[PreAssKickingOneLiner before fighting Caragors]], ''MiddleEarthShadowOfMordor''


[[folder:Web Animation]]

->What was that Nietzsche said? 'He who fights drummers should see to it that in the process he does not become a drummer.' Or was it monsters? I dunno, [[AllDrummersAreAnimals same thing really]].
-->-- '''Gordon Freeman''', ''Machinima/FreemansMind''


[[folder:Web Video]]

->[nasally voice] '''''HA HA!!''''' I have arisen! Now it is '''''I''''' who is the [[TheBully dumper of books!]]
-->--'''[[WebVideo/TheSpoonyExperiment Noah Antwiler]]''' on ''Massacre at Central High''


[[folder:real life]]

-> Systems in conflict become more similar over time.
-->-- '''Herman Kahn''', ''Thinking About the Unthinkable''

->Violence is a disease, a disease that corrupts all who use it regardless of the cause.
-->-- '''Chris Hedges'''

->As soon as men decide that all means are permitted to fight an evil, then their good becomes indistinguishable from the evil that they set out to destroy.
-->--'''Christopher Dawson'''

->You cannot continue to victimize someone else just because you yourself were a victim once—there has to be a limit.
-->-- '''Edward Said'''

->This is the horror. In reaction to the foul and insidious prejudice one begins to [[TheRevolutionWillNotBeCivilized act like a fascist.]]
-->-- '''Roger Mitton''', ''The Cost of Casual Racism''


[[folder:Western Animation]]
->We're going about this the wrong way, '''all''' of us! After countless centuries of fighting ... the Autobots are a '''step''' away from what we were when all this started. And us—the Decepticons have become something '''worse''' than any of us could have '''imagined'''.
-->--'''Drift''', ''{{Franchise/Transformers}} Spotlight: Drift''