Well, what am I supposed to think when I... Oh, I don't know. I don't know anything anymore.

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

You can hear this line at 01:40:11 in the Blu-ray version of the movie.

Quote context

[...]

- Unless you want her.

- No. No, I don't want her.

- Well, I'm designing another one anyway, along more practical lines.

- What'll you call her?

- I thought the True Love ll. What do you think?

- Dexter, if you call any boat that, I promise you, I'll blow you and it out of the water.

- I'll tell you what you can call her, if you like. In fond remembrance of me, The Easy Virtue.

- Now shut up, Red. I can't have you thinking things like that about yourself.

- Well, what am I supposed to think when I... Oh, I don't know. I don't know anything anymore.

- Oh, that sounds very hopeful, Red. That sounds just fine.

- Tracy? We're almost ready. Stand up, dear. Turn around... Oh, yes, it's lovely.

- I'm glad we decided against the... Dexter, you shouldn't be here... Against the blue one, dear.

- Now, no games, Dexter.

[...]