Zoe: Jayne?
Jayne: Hell, I didn't fight in no war. Best o' luck, though.

Captain, did you hear what that purple-belly called Serenity?

Kaylee

Have you seen what she wears? Forget about it. Have you ever been with a warrior woman?

Wash

Alliance officer: Seems odd that you'd name your ship after a battle you were on the wrong side of.
Mal: Maybe on the losing side, still not convinced it was the wrong one.

The key seems to be handing Jayne a heavy stick and then standing back.

Inara

How we treat our dead is part of what makes us different from those who did the slaughter.

Book

Badger: Thought we might have a bit of a sit-down.
Mal: Prefer a bit of a "piss off."

Badger: Won't deal with me direct. He's taken an irrational dislike.
Jayne: What happened, he see your face

'Course, you couldn't buy an invite with a diamond the size of a testicle. I got my hands on a couple.

Badger

Mal: You're supposed to make me look respectable.
Kaylee: Yes sir, Captain Tight-pants.

I'm thinking you weren't burdened with an over-abundance of schooling.

Mal

Mal: We're still flying.
Simon: That's not much.

Firefly Quotes

Mal: You're only going to scare him.
Jayne: Pain is scary.

Mal: I gotta know how close the Alliance is, exactly how much you told them before Wash scrambled your call. So I've given Jayne here the job of finding out.
Jayne: He was non-specific as to how.