This town is startin' to make me angry; angry and alone. And broke. Man, it's expensive to live here! Time for some commercials to refill the coffers. I've got a yoga bill like a motherfucker!

Men are born, and then they're formed.

For this next test, we put nanoparticles in the gel. In layman's terms, that's a billion little gizmos that are going to travel into your bloodstream and pump experimental genes and RNA molecules and so forth into your tumors. Now, maybe you don't have any tumors. Well, don't worry. If you sat on a folding chair in the lobby and weren't wearing lead underpants, we took care of that too.

Gordon Freeman, in the flesh - or, rather, in the hazard suit. I took the liberty of relieving you of your weapons. Most of them were government property. As for the suit, I think you've earned it. The borderworld, Xen, is in our control, for the time being... thanks to you. Quite a nasty piece of work you managed over there; I am impressed. That's why I'm here, Mr. Freeman. I have recommended your services to my... employers, and they have authorized me to offer you a job. They agree with me that you have limitless potential. You've proved yourself a decisive man so I don't expect you'll have any trouble deciding what to do. If you're interested, just step into the portal and I will take that as a yes. Otherwise, well, I can offer you a battle you have no chance of winning... rather an anticlimax after what you've just survived. Time to choose...

I have been to the other side. I have been there and it's incredible. They have flying elephants. They have men made out of chocolate. They have pizzas as big as the city. They have a prize for the a person with the biggest heart, not the biggest wallet.

Sofia Sartor: You mentioned a creed before. What is it?
Ezio Auditore: Nothing is true, everything is permitted.
Sofia Sartor: That is rather cynical.
Ezio Auditore: It would be if it were doctrine. But it is merely an observation on the nature of reality. To say that nothing is true is to realize that the foundations of society are fragile and that we must be the shepherds of our own civilization. To say that everything is permitted is to understand that we are the architects of our actions and that we must live with our consequences, whether glorious or tragic.

V: Said it yourself - you can kick the rat outta the corp...
Jackie: But you'll never kick the corp outta the rat.

Some believe uncertainty is an evil that should be dispelled through divination. Others claim it's change that is evil. But that isn't true either. Every minute of every day, we each become someone new. We shouldn't fear change itself, but only who we might change into. Knowing one's path is moth important.

The Enrichment Center reminds you that the Weighted Companion Cube will never threaten to stab you and, in fact, cannot speak.

Please be advised that a noticeable taste of blood is not part of any test protocol but is an unintended side effect of the Aperture Science Material Emancipation Grid, which may, in semi-rare cases, emancipate dental fillings, crowns, tooth enamel, and teeth.

Scientist: "Do you think we should appeal to the alien authorities?"
Scientist 2: "Absolutely not!"

Good men mean well. We just don't always end up doing well.

Mister, if you can get the power on, that train will take us straight to the surface. I would try it myself, but it's a long way down the generator room, and there are... things, in the way...

I have no heart to give to Death. Perhaps, I'll give her the hearts of others. Yes, one-thousand should do it.

No Gods or kings. Only man.