“Yes, I’ve read a poem. Try not to faint.”
Mal
“You’re my kind of stupid.”
Mal

The Operative:”You’ve done remarkable things but you’re fighting a war you’ve already lost.”

Mal:”Yeah well, I’m known for that.”

Wash: “This landing is gonna get pretty interesting.”

Mal: “Define ‘interesting’?”

Wash: “Oh God, oh God, we’re all gonna die”?

“Mighty fine shindig.”
Mal

Bester: “Mal! What do you need two mechanics for?”

Mal: “I really don’t.”

Mal: “Whatever happens, remember I love you.”
Zoë: “Sir?” 
Mal: “Because you’re my wife.” 
Zoë: “Right. Sir. Honey.” 
“It’s a real burden, being right so often.”
Mal

Mal: “Like to kill you myself, I see you again.”

The Operative:”You won’t… there is nothing left to see.”