"Sigma! You show such loyalty to a proven traitor. What is Porter to you? A convenient excuse to disrupt my work? Or something... More? I am curious, I must admit... But not enough to let you live."

"The machine's prediction accounts for your every act... Until you reach the Thinker's core. The equation... Simply ends! I will not let such an error come to pass!"

"How does it feel to know that your grand purpose is foretold by a machine? The numbers know already what will happen. As I tell you this, will it affect the outcome...? Eh, I'm not so much holding my breath."

"Do what you will with the girls. Twist your body with ADAM... The Thinker's perfect equation accounts for all possibilities."

"[after Sigma destroys the first Lancer Big Daddy] Subject Sigma rises above the pack, hmm? A futile gesture before the all-knowing Thinker."

"Porter's time is done, friend, and now you collude with this traitor to steal The Thinker away from me? [to himself] "Sigma"... must be removed from the equation."

"Look at you, Sigma. You think that Porter is your ally... But The Thinker knows better. The Thinker... knows!"

"What steps into Minerva's Den? Porter's newest toy? He wants The Thinker for himself... But you see, old friend... The machine has chosen me."

"[first lines] Subject Sigma is approaching Minerva's Den. He must not reach The Thinker. Detonate the tunnel! [tunnel explodes]"

"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?"

"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..."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

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

"[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?"

"[when the player finds the Security Command Plasmid] I think Mother knows I’m helping you like this... She’s accelerating my treatments. Don’t give up on me!"

"[when the player finds the Hypnotise Plasmid] Here, Father. It’s yours. You are evolving fast, but your heart is getting weaker. I can keep you alive, but you must find me!"

"Until you arrive, Father, I’m trapped here — smuggling these gifts out is the most I can do to help..."

"Father... It's me, Eleanor. I know you're awake in there — I can feel it. Mother won't be able to... To toy with you like that, ever again. This Plasmid is for you... If I’m right, you can use it now! Please... find me."

"[first lines, showing Subject Delta a doll in his image] Look, Daddy — it’s you!"

"Love is just a chemical. We give it meaning by choice."

"You would rip my only daughter from her home and family and feed her to a world without hope. Though Utopia may die with her, I would sooner see us fall. Goodbye, Eleanor. Mother will be waiting for you."

"[If the player saved all Little Sisters] You granted Eleanor the will to choose. And now, like a plague, she spreads it to those innocents. To be self-aware is a curse, Delta... You are damning them."

"[If the player harvested Little Sisters] In restoring your will, Eleanor was asking you how to behave... And how did you use it? To prey upon the innocent. Now look at her. You have fathered a killer."

"Eleanor was to be a composite of all Rapture's genius. The first living Utopian, serving the world at large with no regard to herself... To force consciousness on such a being... Is to tear its wings away. That was your gift to her, Delta... Just as she hoped... You must be very proud."

"Every moment tears Eleanor further from me, Delta. Soon, this father obsession will end her. You have left me without want... Before you die, I will take all that you hold dear. Sinclair is just another body in your wake."

"Sinclair died a hero of the Rapture Family, Delta. Was he a friend to you, or just a tool? Can you even grasp the difference? And Eleanor... You have chosen Subject Delta over your mother, your people, and the duty of your birth. So be it. You believe this craft will carry Delta to safety, like a spoiled child with a new toy. I have no choice but to take it away..."

"Do you not see, Delta: you were a thing of beauty when first we met — non-conscious, yet utterly vital to your city. The flaw was only in your masters' intent. It is an error we have corrected in Sinclair. He is bonded to the entire Family."

"Free will, Delta — Eleanor's gift to you, and with each decision, you twisted her into your own image. Sinclair has no such choice — yet in its absence, he serves the world unerringly. He is now the better man."

"Eleanor, I know you can hear me. I am inside Sinclair's lifeboat now. Delta cannot reach me here — but you can. You need not die with him. We... We shall return to the surface together, if you will only step inside and accept your duty. Remember, Eleanor... Mummy loves you."

"Don't you recognize Sinclair, Delta? Now, he is what you should have been: one final Alpha Series, ready to die for the Family. As Persephone's former owner, he is the ideal man to put you back in your cage."

"This facility hangs over an ocean trench, Delta. The Family has activated timed charges within its foundations. Surrender before detonation, or we shall fall and be crushed in the abyss below."

"[after Eleanor questions Sinclair’s absence] Yes, Delta, and what of Sinclair? The man who would sell paradise... And where is he now?"

"This is an emergency: Subject Delta has escaped; Eleanor Lamb has turned her back on her own People. Stand and fight, or the Rapture Family falls together."

"Subject Delta... I know you can hear me. You have stolen my life's work, and with it — my only daughter. But Rapture is the house of monsters. The surface will not have us. Tonight, we shall be buried as a family. Side by side."

"Attention! Augustus Sinclair has been sighted within the facility. He will attempt to reach Subject Delta. All Family duties are hereby suspended until he is found!"

"Watch him. His body is shutting down now, naturally... But if he dies of trauma, he will return elsewhere. Full restraints at all times. No one enters this until he expires."

"Look at her, Delta. Ten years, and still she dreams of you. Do you know why Eleanor brought you here? She wanted a father. So she found a way to restore you in body and mind. And she has been watching you ever since, exalting your every act as gospel. The girl lying on that bed is no longer my child, nor my life’s work — She is a monster, shaped by you alone. Just as she has always wanted. But there is one detail of your mutual bond she failed to account for; Your body was designed to lapse into a coma when her heart ceases to beat. [Lamb removes Eleanor’s pillow from her bed] Eleanor... forgive me. [smothers Eleanor, and Delta spasms and loses consciousness]"

"How will she remember us, after this moment? I have placed my pieces on the board, as expected — as have you. Is this what she hoped for? Mother and Father, locking eyes... Yet still we are blind. Goodbye, Subject Delta — and take heart, for you at least, have escaped your legacy..."

"I wonder, Delta, do you know why you are here? Have you any idea what my daughter has given you? As I watch you now, I envy your ignorance. You still believe..."

"She was not meant to have a father, Delta. She was to be an heir to my life’s work. And this is where they changed her, bonding her to you. The child she was... Died in this room."

"Poor Gilbert. It was his will to die, Delta, to serve the majority by protecting them from his lunacy. Your entire journey here is based on your refusal to do the same. Will you grant his request, knowing that he served the Family?"

"Your body begins to tear itself apart; the compulsion to find Eleanor will drive you to madness or coma. You have no claim on her — your design was among Rapture’s greatest sins — and yet you persist. Why?"