You always say that and it doesn't make sense.

2 seconds sound clip from the Harvey (1950) movie soundboard.

You can hear this line at 00:04:27.142 in the Blu-ray version of the movie.

Quote context

[...]

- Oh, Mother, why can't we live like other people?

- Myrtle Mae, do I have to keep reminding you your Uncle Elwood is not living with us, we're living with him.

- Living with him and his pal!

- You promised.

- With his pal Harvey!

- Oh! You said that name. You promised you wouldn't say that name and you said it.

- Mother, why did grandmother leave all of her property to Uncle Elwood?

- I suppose it was because she died in his arms. People are sentimental about things like that.

- You always say that and it doesn't make sense.

- She couldn't make out a will after she died, could she?

- Oh, Myrtle, don't be didactic. It's not becoming in a young girl. Besides, men loathe it.

- Men! A fine chance I've got.

- Now, Myrtle, dear, you know the whole idea of this party this afternoon is to... is to get you started socially, so that you can meet some nice young men.

[...]