Dr. Isaac Kleiner: We can't leave without Lamarr. She's around here somewhere...
Alyx Vance: Come on, Dr. Kleiner. We can find you another pet headcrab.
Dr. Isaac Kleiner: No! There's only one Hedy!

Welcome. Welcome, to City 17. You have chosen, or been chosen, to relocate to one of our finest remaining urban centers. I thought so much of City 17, that I elected to establish my administration, here, in the citadel, so thoughtfully provided by our benefactors. I am proud to call City 17 my home. And so, whether you are here to stay, or passing through to parts unknown, welcome, to City 17. It's safer here.

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

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!

We now have direct confirmation of a disruptor in our midst, one who has acquired an almost messianic reputation in the minds of certain citizens. His figure is synonymous with the darkest urges of instinct, ignorance and decay. Some of the worst excesses of the Black Mesa Incident have been laid directly at his feet. And yet unsophisticated minds continue to imbue him with romantic power, giving him such dangerous poetic labels as the One Free Man, the Opener of the Way. Let me remind all citizens of the dangers of magical thinking. We have scarcely begun to climb from the dark pit of our species' evolution. Let us not slide backward into oblivion, just as we have finally begun to see the light. If you see this so-called Free Man, report him. Civic deeds do not go unrewarded. And contrariwise, complicity with his cause will not go unpunished. Be wise. Be safe. Be aware.