"I'm not religious. … Religion is based on scripture written by men thousands of years ago. Those beliefs can't be changed or challenged. They're fixed."

"Turning over a rock and finding nothing is progress."

"To me, the best thing about living like a lab rat is that sometimes, really rare times, you actually discover something."

"There is someone there with Sofi's exact iris pattern. The eyes and the brain are connected. If—if the cellular structure in the eye is reoccurring from person to person, then maybe something in the brain carries over as well, like a neurological link. Maybe the eye really is some kind of window to the soul."

"I want you to burn me."

"We're already married in the spiritual world."

"I think it's dangerous to play God."

"Big ideas can sometimes lead to great motion pictures or, as in the case of I Origins, colossal misfires. A wannabe examination of faith versus science, Mike Cahill's follow-up to Another Earth fails to provide convincing dramatization of his thematic thesis."

"His use of metaphors, especially those involving eyes, is heavy-handed and obvious. (The title being a prime example.)"

"Cahill spends the entire film bringing a sense of wonder to the desperately rational Ian, and if the film takes on a glow toward the end, that glow feels well-earned."

"Although the film and the actors keep on looking good, this solemn, soppy, fantasy has nothing to say about science or faith."

"Michael Pitt — Ian Gray"

"Brit Marling — Karen"

"Àstrid Bergès-Frisbey — Sofi Elizondo"

"Steven Yeun — Kenny"

"Archie Panjabi — Priya Varma"

"Cara Seymour — Dr. Jane Simmons"

"Venida Evans — Margaret Dairy"

"William Mapother — Darryl Mackenzie"

"Every living person on this planet has their own unique pair of eyes. Each their own universe."

"When I was a child, I realised that the camera was designed exactly like the human eye, taking in light through a lens, forming it into images. I began taking as many pictures of eyes as I possibly could."

"You ever feel like when you met someone, they fill this hole inside of you, and then when they're gone, you feel that space painfully vacant?"

"Cremation is like obliteration. I mean, what if, in the future, the scientists—what if they can reconstitute our selves through our D. N. A.?"

"Are you hungry? I haven't eaten since later this afternoon."

"I am trying, okay, I really am here."

"What's worse, thinking you're being paranoid or knowing you should be?"

"That is no static shock."

"[narrating] Meticulous, yes. Methodical. Educated. They were these things. Nothing extreme. Like anyone, they varied. There were days of mistakes and laziness and infighting. And there were days, good days, when by anyone's judgment, they would have to be considered clever. No one would say that what they were doing was complicated. It wouldn't even be considered new. Except maybe in the geological sense. They took from their surroundings what was needed, and made of it something more."

"How many times would it take before he got it right? Three? Four? Twenty? I've decided to believe that only one more would have done it. I can almost sleep at night, if there's only one more. Slowly and methodically, he reverse-engineered a perfect moment. He took from his surroundings what was needed, and made of it something more. And once the details had been successfully navigated, there was nothing left to do but wait for the conflict. Maybe the obligatory, last minute moral debate until the noise of the room escalates into panic and background screams, as the gunman walks in. And eventually, he must have got it perfect, and it must have been beautiful with all the praise and adoration he had coming. He had probably saved lives, after all. Who knows what would have happened if he hadn't been there?"

"You know what they do with engineers when they turn 40? They take them out and shoot them."

"Aaron, I can imagine no way in which this thing could be considered anywhere remotely close to safe. All I know is I spent six hours in there and I'm still alive... You still want to do it?"

"[His first experience in the machine] Maybe it was the dramamine kicking in, but I remember this moment in the dark with the reverberation of the machine. It was maybe the most content I've ever been."

"And I don't think there's ever been any reason to show you what I'm capable of...but I'm telling you this now. Go out there and do whatever it is you want. There's no way in the world I can stop you, but don't come back here. And don't come near them. Any of them."

"If you always want what you can't have, what do you want when you can have anything?"

"What happens if it actually works?"

"Shane Carruth - Aaron"

"David Sullivan (actor) - Abe"

"Casey Gooden - Robert"

"Anand Upadhyaya - Phillip"

"Carrie Crawford - Kara"

"Keith Bradshaw - Bradshaw"

"You're talking about making a bigger one."