I fear we have exhausted the professor.

2 seconds sound clip from the The Curse of Frankenstein movie soundboard.

You can hear this line at 00:36:44.126 in the Blu-ray version of the movie.

Quote context

[...]

- Good evening, sir.

- How do you do?

- The Professor is staying with us tonight.

- I'm indeed proud to meet you, sir. I had no idea such an honor awaited my return.

- We didn't expect you back until the morning.

- I thought it best to come back.

- I've heard a great deal about you from Baron Frankenstein and I look forward to a talk with you in the morning.

- I shall be delighted.

- I fear we have exhausted the professor.

- No, no, no, no, no. I have enjoyed every minute of this delightful evening. But old age comes not alone.

- Good night, young lady.

- Good night, Professor. I trust that you will sleep well.

- Good night, sir.

- Good night.

- I'll show you to your room.

- Thank you.

[...]