You're afflicted with a fine, fat case of merchant psychology.

7 seconds sound clip from the The Big Knife (1955) movie soundboard.

You can hear this line at 01:14:32 in the Blu-ray version of the movie.

Quote context

[...]

- Shut up! Let me talk. Don't push me back into my usual position of self-justification.

- For the time being, we'll throw away a bunch of rotten grapes that's me, that you seem to feel is me, though I must say, I think your judgment is lousy.

- You swat the fly on my nose with a hammer! Throw it away.

- Yet every time we talk, it's about Charlie Castle! Never once about his long-suffering, sickly wife, Marion.

- Do you know where your fatal error lies? You ought to know, so I'm going to tell you.

- You're afflicted with a fine, fat case of merchant psychology.

- You bargain and trifle with your own nature. That's your error.

- Tonight, you're about to possibly destroy your life and certainly mine.

- Didn't we pick each other out of millions?

- Can this be bargained away by saying, like a merchant: Marion will be herself and love Charlie only if he meets a certain price and conditions?

[...]