- Couldn't you afford to buy my book?
- The bookstore didn't have one.

6 seconds sound clip from the The Philadelphia Story movie soundboard.

You can hear this line at 00:37:50 in the Blu-ray version of the movie.

Quote context

[...]

- What does thee wish? (2)

- Um, local biography or history.

- If thee wilt consult with my colleague in there.

- Dost thou have a washroom? Thank thee.

- Look, I know this is a public library, but I wi...

- Hello.

- Hello.

- Couldn't you afford to buy my book?

- The bookstore didn't have one.

- Well, are you sure you're doing the right thing? You know what happens to girls like you when they read books like mine. They begin to think. That's bad.

- These stories are beautiful. Why, they're almost poetry.

- Well, don't kid yourself. They are.

- I can't make you out at all now.

- Really? I thought I was easy.

- So did I. But you're not.

- You... You talk so big and tough, and then you write like this.

- Which is which?

- Both, I guess.

[...]