↑The Lone Wanderer: "I've been to Project Purity. He wasn't there." Madison Li: "Well I know he was going there. Perhaps there's some indication of what he was up to. Did you find any notes? James was always taking notes. Recordings, holotapes... that sort of thing. Go back and search for something like that if you're so determined." (Madison Li's dialogue)
↑The Lone Wanderer: "What was my father like back then?" Madison Li: "James? He was very driven. Determined to change the world. Well, we all were back then, I suppose. He was focused on two things, really. Making Project Purity work, and your mother. When she died, I think... I think he gave up. I know he wanted to keep you safe, but I think part of what he did was run away. But it seems that he never really was able to get over the idea. I'm frankly shocked that he waited all this time, and wants to try again." (Madison Li's dialogue)
↑ 7.07.1The Lone Wanderer: "What exactly is this "Project Purity"?" James: "It started as an idea, really. Remember the Bible passage your mother loved so much? Free, clean water for everyone. What a difference it could make in the lives of everyone here in the Wastes. Over time, that idea took the form of a purifier. Not like the one in the Vault, though. This one was gigantic, capable of purifying millions of gallons of water at once. We used the old Jefferson Memorial for the location, right on DC's Tidal Basin. Someday soon, I hope you'll see it work." (James' dialogue)
↑The Lone Wanderer: "You knew my father?" Cross: "I did. And you as well! Long ago, I helped guard the water purifier against the Super Mutant horde. When your father left, I escorted the two of you to Megaton. He was... a noble man. I was saddened to hear of his passing. But from what I've heard, he died with honor. He died for you. I only pray that my own death has such meaning." (Cross' dialogue)
↑The Lone Wanderer: "You've got to be kidding me..." James: "You must understand. As much as I love you, this project has been my responsibility since long before you were even born. Too many people have made sacrifices to give up on it now. Your mother... If you'll let me, I'd like to show you what we've accomplished. I want you to be there when we change the world. After so many years, I can finally see it through to the end. I can't stop now." The Lone Wanderer: "What about me? What am I supposed to do?" James: "Yes, what about you? Why, in fact, are you outside the Vault at all? I don't even want to know HOW you got out. As much as I appreciate your help, you were supposed to stay there, to make a life for yourself there, not out here!" The Lone Wanderer: "What the hell is wrong with you? Why did you just leave me like that?" James: "That's where you belonged. You were an adult, capable of fending for yourself, and you had a good life ahead of you. What's out here is my task, my responsibility. I never wanted you to have any part of this insanity." (James' dialogue)
↑The Lone Wanderer: "How could abandoning me be the right choice?" James: "For almost twenty years now, I've done everything I can to see that you have a good life. The Vault wasn't perfect, to be sure, but it was the safest place in the Wasteland. That's why I took you there in the first place. I didn't see it as abandoning you. I saw it as moving on, knowing you were safe." (James' dialogue)
↑ 14.014.114.2The Lone Wanderer: "Did you get the information you needed?" James: "I did indeed. Braun's work, the G.E.C.K., was designed to re-adapt environments for living after a nuclear war. It's not entirely stable, but I'm sure that components of that technology are just what we need, what we've been missing all this time. I need to return to Rivet City. Once Madison knows about the G.E.C.K., I can get her to see that it really will work." (James' dialogue)
↑The Lone Wanderer: "Where's my father? Tell me now!" Madison Li: "Calm down, calm down! What are you doing here? James said you were still in the Vault. Look, this is all terribly irrational. Your father just shows up here as if nothing happened... He walked out on us. I know he had his reasons, I know it was to protect you, but still. Project Purity was our life. It was the only thing that mattered, and then he just gave up. He abandoned us, and we were forced to move on. I've already told him that it's over. There's no going back. Project Purity was a failure, and he needs to move on." (Madison Li's dialogue)
↑ 16.016.116.2James: "You've saved me. I was afraid I'd be trapped in there forever.It's so good to see you, but... What are you DOING here?" James: "Son... You've saved me. I was afraid I'd be trapped in there forever.It's so good to see you, but... What are you DOING here?" The Lone Wanderer: "What are YOU doing here? You could've been killed!" James: "Well I didn't expect Dr. Braun to be alive and insane. I thought I'd just find notes, or holotapes. I needed information about Braun, and his work on the G.E.C.K." The Lone Wanderer: "Good thing I showed up to save you." James: "It certainly is! It's nice to feel like I'm on two legs again. And thanks to Doctor Braun, I know that Project Purity isn't lost after all." (James' dialogue) Note: The first line in this series differs whether the Lone Wanderer is male or female.
↑ 17.017.117.217.317.417.5Augustus Autumn: "By the authority of the President, this facility is now under United States government control. The person in charge is to step forward immediately, and turn over all materials related to this project." James: "That's quite impossible. This is a private project; the Enclave has no authority here. I'm going to have to ask you to leave at once." Augustus Autumn: "Am I to assume, sir, that you are in charge?" James: "Yes, I'm responsible for this project." Augustus Autumn: "Then I repeat, sir, that you are hereby instructed to immediately hand over all materials related to the purifier." James: "I'm sorry, but that's...." Augustus Autumn: "Furthermore, you are to assist Enclave scientists in assuming control of the administration and operation of this facility at once." James: "Colonel... Is it Colonel? I'm sorry, but the facility is not operational. It never has been. I'm afraid you're wasting your time here." Augustus Autumn: "Sir, this is the last time I am going to repeat myself. Stand down at once, and turn over control of this facility." James: "Colonel, I assure you that this facility will not function. We have never been able to successfully replicate test results..." Augustus Autumn: "I suggest you comply immediately, sir, in order to prevent any more incidents. Are we clear?" James: "Yes, Colonel. I'll do whatever you want; there's no need for more violence." Augustus Autumn: "Then you will immediately hand over all materials related to this project, and aid us in making it operational at once." James: "Very well. Give me a few moments to bring the system online." James: "Nearly finished..." James: "...run... Run!..." (Augustus Autumn's and James' dialogue)
↑ 18.018.1The Lone Wanderer: "What the hell just happened?" Madison Li: "James... Your father caused an overload. He sacrificed himself to keep the Enclave from getting the purifier, and to buy us time to escape. There'll be more of them coming. We need to get out of here before they find us, or else your father died in vain." (Madison Li's dialogue)
↑The Lone Wanderer: "What, you didn't like being a dog?" James: "Well, I suppose it had its moments. But in the end, I much prefer having opposable thumbs. And now that I'm back, I can get back to work. I need to tell Madison what I've learned." (James' dialogue)
↑Fallout 3 Official Game Guide Game of the Year Edition p.67: "Dad (James) Before your birth, your father was the leader of an impossibly ambitious scientific endeavor—Project Purity. Leading a group of scientists, he planned to turn the ruins of the Jefferson Memorial into the most technologically advanced water purifier ever imagined. But when you were born (your mother dying in childbirth), your father had little choice but to abandon Project Purity and get you to the only safe place he knew—the underground fallout shelter known as Vault 101." (Fallout 3 Official Game Guide Game of the Year Edition Wasteland Census)
↑ 2.02.12.22.3Fallout 3 Official Game Guide p. 358-05: "Before your birth, your father was the leader of an impossibly ambitious scientific endeavor-Project Purity. Leading a group of scientists, he planned to turn the ruins of the Jefferson Memorial into the most technologically advanced water purifier ever imagined. But when you were born (your mother dying in childbirth), your father had little choice but to abandon Project Purity and get you to the only safe place he knew-the underground fallout shelter known as Vault 101."