Mordecai: Never hurts to know more about the man you're killing. While you're in the Nexus, grab whatever files you can on Jack.
Journal #1
Young Angel: I don't understand, Daddy.
Handsome Jack: Say hello to your new home, darling. You're like a little princess, and this is your throne!
Young Angel: I want mommy. Where's mommy?
Handsome Jack: She's not coming back, Angel. Now get in the freaking chair.
Young Angel: I don't want to--
Handsome Jack: Get - there we go - in the chair.
Journal #2
Handsome Jack: Okay, any candidates today, Angel?
Angel: There are... four treasure hunters who arrived on a shuttle several hours ago. They are currently on a bus to Fyrestone.
Handsome Jack: Great! Say this to 'em: Don't be alarmed. I need you to stay calm and don't let on that anyone is talking to you. Start making your way off the bus.
Angel: The bus is still moving, sir.
Handsome Jack: Shut up. Tell them --
Door opens.
Hyperion President: John? Why have you dispatched one of our satellites to Pandora? What are you doing?
Handsome Jack: Uh... sir, uh, the energy readings my, uh... instruments, uh, at home are getting from Pandora, are--
Hyperion President: Get out of there at once, you hideous little code monkey! And shut off that satellite!
Handsome Jack: Yes, sir - I'm sorry, Mister Tassiter, it won't happen again, sir.
Journal #3
Moorin: Uhm, sir - we've lost at least a dozen staff to the Angel's "malfunctions." We need to shut her down! Your wife suggested as much before her disappear--
Handsome Jack: Jimmy, please make a note: I'm strangling Mister Moorin for bringing up my wife.
Mister Blake: Choked... Mister Moorin...
Handsome Jack: No, no, Jimmy, choking is something you do when you eat too fast. As I'm crushing Mister Moorin's windpipe with my watch chain, what I'm doing is actually referred to as strangling.
Moorin: Ghkk... please, please--
Handsome Jack: Tut-tut-tut-tut-tut... Shhhhh. There we go. Anything else on today's agenda, Jimmy?
Mister Blake: It's "Jeffrey," sir. And no.
Handsome Jack: Thanks, Jimmy! Well, then. Drinks are on Handsome Jack!
Journal #4
Handsome Jack: Why isn't this working, Angel?
Angel: I don't--
Handsome Jack: I've pumped every frickin' ounce of Eridium I've got into you, but the stupid Key isn't working! WHY?!
Angel: I'm sorry, I don't know.
Handsome Jack: You're a SIREN! You're one-of-a-kind, now make it work! I want that freaking Warrior, Angel. I want him awake, ok? I want him under my control, now - I want him now! Not later! Now!
Journal #5
Handsome Jack: Ah, tut tut - now now, Mister Tassiter, "blackmail" is such a dirty little word, isn't it? Actually, you know what, come to think of it, it's not a dirty word at all. It's kind of awesome. Blackmail! Say it with me: black--
Hyperion President: --Oh, go to hell, John. Just because you got lucky with your Pandora hunch doesn't mean--
Handsome Jack: Because I was right, is what you mean. And call me Jack, idiot.
Hyperion President: You may have been able to scare the other directors into giving up their shares, but I know you. I know that beneath that ridiculous mask, you're still a hideous, pathetic little nobody--
Handsome Jack: Mister Tassiter - maybe you can settle up something for me - do you know the difference between choking and strangulation?
There is a well known bug for the Jack journal #5 where the lever can be activated without first pressing the button. This allows a player one attempt to kill the rakk before it flies out of range or drops the journal in an impossible to reach place. Any further attempts are impossible because the lever can never be activated again. There is, however, a theory that the lever does work at night.
The 12/13/12 update should fix the journal #5 bug by allowing the player to pull the lever and finish the mission.