I think by now you and I know how to take care of those ideas of Linda's.

4 seconds sound clip from the Holiday (1938) movie soundboard.

You can hear this line at 00:39:06.312 in the Blu-ray version of the movie.

Quote context

[...]

- Father... you can trust me. I'll take care of myself.

- Oh, thank you, Father.

- Can we announce it New Year's Eve?

- I shall arrange a party.

- Oh, how wonderful.

- Ahh. Linda had said something about wanting to give a party herself. One of those ideas of hers.

- I think by now you and I know how to take care of those ideas of Linda's.

- Well, it was awfully sweet of her.

- Linda has many generous impulses.

- Father?

- Come in, Linda.

- Is it yes?

- Oh, Father, I knew you'd do it.

[...]