"Ryan's secret police came for Porter, long ago. And now he has... Reappeared in Minerva's Den? A man sent to Persephone does not just open his cell door and walk home..."

"I've tried to keep you from the heart of the machine! You did not listen! When the pangs of familiarity sting you, my friend... You will have only yourself to blame."

"Porter! You have forced my hand! You see?! The Thinker is shut down! That leaves only two variables: You, and me. The equation... Ends... Here!"

"Your moment has come, old friend! I stand before you, the trusted partner who put a knife in your back. Do not disappoint me!"

"Mainframe reactivated. Confirming user's genetic identity. Genetic identity confirmed: Alpha Series Subject Sigma. Former identity: Charles... Milton... Porter. [in Porter’s voice] Welcome back, Milton. [abruptly changes to the Thinker’s voice] Ending personality duplication. Subject: Charles Milton Porter."

"H... Herr Sigma! It is Dr. Tenenbaum! With the computer disabled, Minerva's Den is falling to pieces! No pressure regulation, no air supply! You must defeat Wahl and bring The Thinker back to full power."

"[after defeating Wahl] Quickly, take the Administrator Punchcard from Wahl's body and reactivate The Thinker!"

"You see now why I let the machine speak for you, Mr. Porter. We needed a voice that would be familiar... Comforting. Your own. With that copy of The Thinker's programming, we may return to the surface... And use it to restore you to the man you once were. Please, collect the print-out and meet me at the bathysphere dock. Take your time, Mr. Porter. I'll be waiting."

"The Thinker never gave up on you, Mr. Porter. It could not leave you behind. Please, step up to the console and begin the bathysphere launch sequence. We have much work ahead of us."

"Come now, into the vessel. Our work together is only beginning."

"Sarah Bolger - Eleanor Lamb"

"Fenella Woolgar - Sofia Lamb"

"Doug Boyd - Augustus Sinclair"

"Anne Bobby - Brigid Tenenbaum"

"Jodelle Ferland - Little Sisters"

"Sheryl Lee Ralph - Grace Holloway"

"Richard Poe - Simon Wales"

"Graham Rowat - Daniel Wales"

"Bill Lobley - Stanley Poole"

"John Hillner - Gil Alexander/"Alex the Great""

"Carl Lumbly - Charles Milton Porter"

"Keith Szarabajka - Reed Wahl"

"[from the launch trailer] For every choice, there is an echo. With each act, we change the world. One man chose a city free of law and god — but others chose corruption; and so, the city fell. If the world were reborn in your image, would it be paradise or perdition?"

"This is not your daughter. Do you understand? Her name is Eleanor, and she is mine."

"This is Doctor Sofia Lamb, with a message for the people: Remember, you are not alone. Think of me not as leader, but as a mother to the Rapture Family."

"I know you. That symbol on your hand marks you a dead man. Ten years, Subject Delta, since I watched you put a gun to your head and pull the trigger. But take heart: Out of your pain, paradise was born. I don't know how you survived, but your suffering is over now. These men will ease your burden. Please understand that like all I have done, this... Is an act of love."

"I know of your bond with Eleanor. To save yourself, you will come for her. But Eleanor has a destiny, one you cannot share. There is no place for you in paradise."

"Citizens of Rapture, this is Subject Delta. Behind that mask hides an enemy of the People, without soul or sympathy. It is a beast apart, and as Family, we must tear off its jaw and drive it back into the sea."

"Ryan was wrong. To hand sufficient power to any individual is to create a Tyrant. We must therefore eradicate tyranny at the genetic level. To end sin itself. That is the Family. That is our cause."

"I do not hate you, Delta… Indeed, I care for you in equal measure to any other sentient creature. But I cannot sacrifice a thousand of my children for one rebellious son."

"So... you would drain the people of their life’s blood. Rapture is a body, Delta. I am the voice... And Big Sister is the hand. When Rapture speaks of you — it says only this: Sleep now. Your day is done."

"Ryan saw the individual as a hero... A noble survivor. And Rapture was his Paradise... A shrine, to the supremacy of the self. The result? Slavery. Genocide. Chaos. Now that the Tyrant is dead, we are a true collective... A single family."

"I had thought you some golem of Sinclair's, brought here to hold Rapture's arms as he rifles through her pockets. But no... You are aware of your plight. Who, I wonder, would be so cruel? To force a mirror on a man with no face..."

"For Grace, the paradise of Andrew Ryan was most unkind... She spoke against him in song, and he had her blacklisted... It left her penniless. But in the Family, she has found hope — a reason to draw breath. Ask yourself, Delta... do you deserve to take it from her?"

"[If the player chooses to kill Grace Holloway] Grace failed to protect Eleanor from the fall of Rapture, Delta... And my human daughter was lost forever. But I forgave Grace for that. And you murdered her... Ratifying her bigotry. She was right about your nature... And you have made her so."

"[If the player chooses to spare Grace Holloway] By sparing Grace, do you seek to gain my trust? A feeble ruse. Your crocodile tears may poison her with doubt, but I am not so easy a mark."

"I see Father Wales has parted you from your craft, and yet you cling to life. Congratulations. Today, Delta, you meet a man who has no fear of death, and for Eleanor... He would burn with a smile."

"Faith, Delta... it lives within us, yet beyond us. Daniel Wales lacked it; Father Simon Wales does not. The faithful do not die in fear, as you did... we achieve martyrdom."

"Father Simon Wales, I have trapped a devil at your doorstep. And Simon? Daniel is dead. Murdered. Can you hear him crying out for justice?"

"Ask yourself, Delta... You who have suffered beyond measure at the hands of men like Ryan... What is the cost of paradise? To end pain... To end sin... What must we pay? Eleanor is my answer."

"Do you think me a Tyrant, Delta, vying for control of a dead man's dream? The city is nothing. Rapture must die, so that Eleanor may rise from its body. Allow me to demonstrate..."

"Subject Delta, I want you to commit this moment to memory for me — this... Howling, brutish slog through the dark. This is who we are."

"Look, Delta, it is the world for which you strive. You... Alone... Among the dead."

"Attention! Attention: Subject Delta has drained and infiltrated Dionysus Park. His death is our rebirth — the life of the People's Daughter is in your hands!"

"Dionysus Park was my home, Delta... An experiment in social unity, cut short by human folly. You dishonor its memory with every step."

"You mistake my nature, Delta. I wish no ADAM for myself. Eleanor is the dream... And she needs neither weapons nor parlor tricks."

"ADAM is Rapture, Delta! The finest minds of Paradise in a single, sublime mosaic. Eleanor. Consider the genius you deny her with every stolen drop."

"Through ADAM, Eleanor will become the daughter of the people — a true Utopian... Brilliant beyond measure, but utterly selfless. As she ascends, Delta, you and I will seem as dogs, circling and snarling amid the afterbirth."