Ian Malcolm: Mommy's very angry.
Roland Tembo: The Rex just fed, so he won't be hunting for a while.
Ian Malcolm: Just fed? I assume you're talking about Eddie? You might show a little more respect, the man saved our lives by giving his.
Roland Tembo: Then his problems are over. My point is, predators don't hunt when they're not hungry.
Nick Van Owen: Yeah, only humans do.
Roland Tembo: Oh, you're breaking my heart. Come on! Saddle up, let's get this moveable feast under way!
Ian Malcom: Yes, ooo, ahh, it always starts out that way, and then comes all the running and screaming.
Peter Ludlow: Careful. This suit cost more than your education.
Roland Tembo: This is a game trail, Mr. Ludlow. Carnivors hunt on game trails. Do you want to set up base camp or a buffet?
Sarah Harding: I've worked around predators since I was 20 years old. Lions, jackals, hyenas... You.
John Hammond: Don't worry, I'm not making the same mistakes again.
Ian Malcolm: No, you're making all new ones.
Ian Malcolm: Did you find him?
Roland Tembo: Just the parts they didn't like.
Ian Malcolm: Taking dinosaurs off this island is the worst idea in the long, sad history of bad ideas, and I'm going to be there when you learn that.
Roland Trembo: Snaggers, stay ready. I'm bringing it out to you. It'll be a...um...pachy...a pachya... Oh hell, the fat head with a bald spot. Friar Tuck.
Ian Malcolm: You sent my girlfriend to this island alone?
John Hammond: Sent is hardly the word. She couldn't be restrained.
Roland Tembo: Peter, if you want me to run your little camping trip, there are two conditions: first, I'm in charge, and when I'm not around, Dieter is. All you have to do is sign the checks, tell us we're doing a good job, and open your case of scotch when we have a good day. Second condition: my fee? You can keep it. All I want in return for my services is the right to hunt one of the tyrannosaurs. A male, a buck only. How and why is my business. Now if you don't like either of those conditions, you're on your own. So go ahead, set up base camp right here, or in a swamp, or in the middle of a Rex nest for all I care. But I've been on too many safaris with rich dentists to listen to any more suicidal ideas, OK?
Ian Malcolm: It's fine if you wanna put your name on something, but stop putting it on other people's headstones.
Answer: It's basically about facing one's own mortality. Many humans feel that they 'feel the most alive' when facing (and overcoming) dangerous situations, the more challenging, the better. Roland is a big game hunter, to him, the ultimate challenge would be to hunt the biggest and (presumably) most dangerous predator ever to exist. Facing the danger of the T. Rex would make him feel better and mightier than he had ever felt in his life.
Twotall