You are not prepared!

I didn't sign on for this shit. Monsters, sure, but civilians? Who ordered this operation anyway?

Eat this, you outer-space octopus!

I am the Swarm. Armies will be shattered. Worlds will burn. Now at last, on this world, vengeance shall be mine. For I am the Queen of Blades.

Boooomshakalaka

Dr. Freeman, you really shouldn't be out there. At the moment of synapse, as I teleport, this chamber will be bathed in deadly particles that have yet to be named by human science. Perhaps when I have the leisure to do the work myself, I'll name one after you. That way you won't be completely forgotten.
When the singularity collapses, I will be far away from here. In another universe, as a matter of fact! You, on the other hand, will be destroyed in every way it is possible to be destroyed - and even in some which are essentially impossible!

What is better -- to be born good, or to overcome your evil nature through great effort?

I'd like to take a moment to address you directly, Dr. Freeman. Yes. I'm talking to you, the so-called One Free Man. I have a question for you. How could you have thrown it all away? It staggers the mind. A man of science, with the ability to sway reactionary and fearful minds toward the truth, choosing instead to embark on a path of ignorance and decay. Make no mistake, Dr. Freeman. This is not a scientific revolution you have sparked... this is death and finality. You have plunged humanity into freefall. Even if you offered your surrender now, I cannot guarantee that our benefactors would accept it. At the moment, I fear they have begun to look upon even me with suspicion. So much for serving as humanity's representative. Help me win back their trust, Dr. Freeman. Surrender while you still can. Help ensure that humanity's trust in you is not misguided. Do what is right, Dr. Freeman. Serve mankind.

Tell my wife, I had another wife.

Have you read the manual for this thing?

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!

You are not a good person. You know that, right? Good people don't get up here.

Well, Gordon, I see your HEV Suit still fits you like a glove. At least, the glove parts do.

Man of few words, aren't you?

Amanda De Santa: Get a center, Michael. You have no center.
Michael: How about you suck my cock?