- This article includes quotes from the video game Portal. For portals inside Wikiquote, see Wikiquote:Portal.
Portal is a first-person action/puzzle video game that was released as part of The Orange Box in October 2007. The game consists primarily of a series of physics puzzles that must be solved by teleporting the player's character and other simple objects using the Aperture Science Handheld Portal Device (dubbed the "Portal Gun"), a unit that can create an inter-spatial portal between flat planes. The player character is challenged by an AI named "GLaDOS" (Genetic Lifeform and Disk Operating System) to complete each puzzle in the "Aperture Science Enrichment Center" using the Portal Gun, with the promise of receiving cake when all the puzzles are completed.
Test Chamber 00 
- Hello, and, again, welcome to the Aperture Science Computer-Aided Enrichment Center.
Test Chamber 06 
- You, [subject name here], must be the pride of [subject hometown here]!
Test Chamber 08 
- Please note that we have added a consequence for failure. Any contact with the chamber floor will result in an "unsatisfactory" mark on your official testing record, followed by death. Good luck!
Test Chamber 09 
- The Enrichment Center regrets to inform you that this next test is impossible. Make no attempt to solve it.
- [after Chell completes test chamber] Fantastic. You remained resolute and resourceful in an atmosphere of extreme pessimism.
Test Chamber 10 
- Spectacular. You appear to understand how a portal affects forward momentum, or to be more precise, how it does not. Momentum, a function of mass and velocity, is conserved between portals. In layman's terms: speedy thing goes in, speedy thing comes out.
Test Chamber 15 
- Did you know you can donate one or all of your vital organs to the Aperture Science Self-Esteem Fund for Girls? It's true!
Test Chamber 17 
- The Enrichment Center reminds you that the Companion Cube cannot speak. In the event that the Companion Cube does speak, the Enrichment Center urges you to disregard its advice.
- You euthanized your faithful Companion Cube more quickly than any test subject on record. Congratulations.
Test Chamber 18 
- The Enrichment Center is required to remind you that you will be baked, and then there will be cake.
Test Chamber 19 
- Congratulations. The test is now over. All Aperture technologies remain safely operational up to 4000 degrees Kelvin. Rest assured that there is absolutely no chance of a dangerous equipment malfunction prior to your victory candescence. [The player's platform is lowered into a fire pit] Thank you for participating in this Aperture Science computer-aided enrichment activity. Goodbye.
Outside the Chambers 
- Didn't we have some fun, though? Remember when the platform was sliding into the fire pit and I said "Goodbye", and you were like, [deep voice] "No way!" And then I was all, "We pretended we were going to murder you." That was great.
Main Hall 
- [Upon entering the Main Hall] Well you found me. Congratulations. Was it worth it? Because despite your violent behaviour, the only thing you've managed to break so far, is my heart. Maybe you could settle for that and we'll just call it a day. I guess we both know that isn't going to happen. You chose this path. Now I have a surprise for you. Deploying surprise in five, four… [morality core drops to the ground] Time out for a second. That wasn't supposed to happen. Do you see that thing that fell out of me? What is that? It's not the surprise… I've never seen it before. Never mind. It's a mystery I'll solve later… By myself… Because you'll be dead.
- [After picking up the morality core] Where are you taking that thing? I wouldn't bother with that thing. My guess is that touching it will just make your life even worse somehow. I don't want to tell you your business, but if it were me, I'd leave that thing alone. Do you think I am trying to trick you with reverse psychology? I mean, seriously now. Okay fine: DO touch it. Pick it up and just... stuff it back into me. Let's be honest: Neither one of us knows what that thing does. Just put it in the corner, and I'll deal with it later. That thing is probably some kind of raw sewage container. Go ahead and rub your face all over it. Maybe you should marry that thing since you love it so much. Do you want to marry it? WELL I WON'T LET YOU! How does that feel? Have I lied to you? I mean in this room. Trust me, leave that thing alone. I am being serious now. That crazy thing is not part of any test protocol. Just ignore that thing and stand still. Think about it: If that thing is important, why don't I know about it? Are you even listening to me? I'll tell you what that thing isn't: It isn't yours. So leave it alone.
- [After burning the morality core] You're kidding me. Did you just stuff that Aperture Science thing-we-don't-know-what-it-does into an Aperture Science Emergency Intelligence Incinerator? That has got to be the dumbest thing that … whoa. Whoa, whoa … [Cackles, voice changes] Good news: I figured out what that thing you just incinerated did. It was a morality core they installed after I flooded the enrichment center with a deadly neurotoxin, to make me stop flooding the enrichment center with a deadly neurotoxin. So get comfortable while I warm up the neurotoxin emitters.
- Oh, you think you're doing some damage? Two plus two is [static] … ten. In base four! I'm fine!
- I'd just like to point out that you were given every opportunity to succeed. There was even going to be a party for you. A big party that all your friends were invited to. I invited your best friend, the Companion Cube. Of course, he couldn't come, because you murdered him. All your other friends couldn't come either, because you don't have any other friends. Because of how unlikeable you are. It says so here in your personnel file: unlikeable. Liked by no one. A bitter, unlikeable loner whose passing shall not be mourned. "Shall not be mourned." That's exactly what it says. Very formal. Very official. It also says you were adopted. So that's funny too.
- I have your brain scanned and permanently backed up in case something terrible happens to you – which it's just about to. Don't believe me? Here, I'll put you on. [Silly voice] "Hellooo!" That's you! That's how dumb you sound! You've been wrong about every single thing you've ever done, including this thing. You're not smart. You're not a scientist. You're not a doctor. You're not even a full-time employee. Where did your life go so wrong?
Wall graffiti 
- In the later stages of the game, the player comes across graffiti written by Doug Rattmann, a scientist who survived the initial wave of personnel killings.
- The cake is a lie
- Not in cruelty, not in wrath
The Reaper came today
An angel visited this gray path
And took the cube away.
- Because I could not stop for Death,
He kindly stopped for me;
The cube had food and maybe ammo.
See also 
- The Official Portal Site