Barton Keyes: Now look, Walter. A guy takes out an accident policy that's worth $100,000 if he's killed on the train. Then, two weeks later, he *is* killed on the train. And, not from the train accident, mind you, but falling off some silly observation car. You know what the mathematical probability of that is? One out of, oh, I don't know how many billions. And after that, the broken leg. No, it just, it just can't be the way it looks. Something has been worked on us!

Barton Keyes: Now that's enough out of you, Walter. Now get outta here before I throw my desk at you.
[looks in his pocket for a match]
Walter Neff: [takes a match of his own and lights Keyes' cigar] I love you, too.
[voiceover]
Walter Neff: I really did, too, you old crab. Always yelling your head off, always sore at everybody. You never fooled me with your song and dance, not for a second. I kinda always knew that behind all the cigar ashes on your vest was a heart as big as a house.

Barton Keyes: Walter, you're all washed up.

Barton Keyes: Well, I get darn sick of tryin' to pick up after a gang of fast-talking salesmen dumb enough to sell life insurance to a guy who sleeps in the same bed with four rattlesnakes.

Barton Keyes: What's the matter? Dames chasing you again? Or still? Or is it none of my business?
Walter Neff: If I told you it was a customer, you'd...
Barton Keyes: "Margie"! I bet she drinks from the bottle.

Walter Neff: Dear Keyes, I suppose you'll call this a confession when you hear it... Well, I don't like the word confession, I just want to set you right about something you couldn't see because it was smack up against your nose. You think you're such a hot potato as a claims manager; such a wolf on a phony claim... Maybe y'are. But let's take a look at that Dietrichson claim... accident and double indemnity. You were pretty good in there for awhile Keyes... you said it wasn't an accident, check. You said it wasn't suicide, check. You said it was murder... check.

Walter Neff: Do I laugh now, or wait 'til it gets funny?

Walter Neff: How could I have known that murder could sometimes smell like honeysuckle?

Walter Neff: I get the general idea. She was a tramp from a long line of tramps.

Walter Neff: It's just like the first time I came here, isn't it? We were talking about automobile insurance, only you were thinking about murder. And I was thinking about that anklet.