Rocket Raccoon: Metaphors go over his head.
Drax the Destroyer: NOTHING goes over my head! My reflexes are too fast, I would catch it.
Groot: I am Groot.
Gamora: I am going to die surrounded by the biggest idiots in the galaxy.
Peter Quill: There's one other name you might know me by. Star Lord.
Korath: Who?
Peter Quill: Star Lord, man. Legendary outlaw? Forget it.
Rocket Raccoon: I don't think you even have a plan.
Peter Quill: I have part of a plan.
Drax the Destroyer: What percentage of a plan do you have?
Gamora: You don't get to ask questions after the nonsense you pulled on Knowhere!
Drax the Destroyer: I just saved Quill!
Peter Quill: We've already established that you destroying the ship I'm on is not saving me!
Drax the Destroyer: When did we establish that?
Peter Quill: Like three seconds ago!
Drax the Destroyer: Well I wasn't listening then, I was thinking of something else...
Gamora: I know who you are, Peter Quill, and I am not some starry eyed waif here to succumb to your... Your pelvic sorcery!
Rocket Raccoon: Why would you want to save the galaxy?
Peter Quill: Because I'm one of the idiots who lives in it!
Rocket Raccoon: That's for if things get really hardcore. Or if you wanna blow up moons.
Gamora: No one's blowing up moons.
Rocket Raccoon: You just wanna suck the joy out of everything.
Drax: Where did you learn to do that?
Peter Quill: I'm pretty sure the answer is "I am Groot."
Thanos: The only matter I do not take seriously, boy, is you. Your politics bore me! Your demeanor is that of a pouty child. And apparently you alienated my favorite daughter, Gamora. I shall honor our agreement, Kree, if you bring me the orb. But return to me again empty handed and I will bathe the star-ways with your blood.
Rocket Raccoon: No, Groot... Don't do this, you'll die... Why are you doing this?
Groot: We are Groot.
Gamora: And Quill... Your ship is filthy [walks away].
Peter Quill: Oh she has no idea. If I had a blacklight, this would look like a Jackson Pollock painting.
Rocket Raccoon: You got issues, Quill.
Drax the Destroyer: I like your knife, I'm keeping it.
Moloka Dar: That was my favorite knife.
Drax the Destroyer: I just wanted to tell you how grateful I am that you've accepted me despite my blunders. It is good to once again be among friends. You, Quill, are my friend.
Peter Quill: Thanks.
Drax the Destroyer: This dumb tree is also my friend.
[Groot grunts.]
Drax the Destroyer: And this green whore is also...
Gamora: Oh, you must stop!
Rocket Raccoon: Fine, but I can't promise when all of this is over I'm not going to kill every last one of you jerks.
Peter Quill: See, this is exactly why none of you have any friends!
Peter Quill: What should we do next: Something good, something bad? Bit of both?
Gamora: We'll follow your lead, Star-Lord.
Peter Quill: A bit of both!
Gamora: I'm a warrior, an assassin. I don't dance.
Peter Quill: Really? Well, on my planet, we have a legend about people like you. It's called Footloose. And in it, a great hero, named Kevin Bacon, teaches an entire city full of people with sticks up their butts that, dancing, well, is the greatest thing there is.
Gamora: Who put the sticks up their butts?
Rocket Raccoon: Keep her on up there, Saal. We'll take care of the people down here.
Garthan Saal: I can't believe I'm taking orders from a hamster.
Gamora: You should have learned.
Peter Quill: I don't learn. One of my issues.
Peter Quill: I'm not about to be taken down by a tree and a talking raccoon...
Rocket Raccoon: What's a raccoon?
Peter Quill: "What's a raccoon?" It's what you are, stupid!
Rocket Raccoon: Ain't no thing like me, except me.
Answer: As a Kree, he has superior physical and mental strength that allows him to briefly hold the Infinity Stone, just as Peter held it briefly. But if he had held it longer he would have been destroyed, although he would be able to hold it longer than most. This is why he was trying to embed the stone into his Cosmi-Rod.
Bishop73