- Thank you, Mr. Baxter.
- I mean it sincerely.

5 seconds sound clip from the Christmas in July (1944) classic radio play.

You can hear this line at 00:45:44 in the radio play.

Quote context

[...]

- Oh. Oh, now stop it honey. Come on, cut it out now. Please, Betty.

- Well, may I come in? I heard you talking to Sam

- Oh, I was just coming in to see you, Mr. Baxter.

- We stopped in to take a look at the office.

- Well, I hope you like it.

- Oh it's just lovely.

- It isn't every young man who gets his own office and a private secretary at your age. A great many of them, I'm afraid, it would go to their heads. But I think you have your feet pretty solidly on the ground.

- Thank you, Mr. Baxter.

- I mean it sincerely.

- Mr. Jenkins and I discussed our little meeting at great length.

- And I want you to know that we were genuinely impressed. Genuinely so!

- Well, that's certainly nice to hear, Mr. Baxter.

- Yes, the more we thought about your ideas, the more aware we became of their pungency, of their brevity, of their sparkle.

[...]