It's a perfectly good brain, Doctor. Well, you ought to know. It came from your own laboratory.

8 seconds sound clip from the Frankenstein (1931) movie soundboard.

You can hear this line at 00:29:31 in the Blu-ray version of the movie.

Quote context

[...]

- Have you never wanted to look beyond the clouds and the stars, or to know what causes the trees to bud, and what changes a darkness into light?

- But if you talk like that, people call you crazy.

- Well, if I could discover just one of these things, what eternity is, for example, I wouldn't care if they did think I was crazy!

- You're young, my friend. Your success has intoxicated you. Wake up and look facts in the face.

- Here we have a fiend whose brain...

- Whose brain must be given time to develop.

- It's a perfectly good brain, Doctor. Well, you ought to know. It came from your own laboratory.

- The brain that was stolen from my laboratory was a criminal brain.

- Oh, well. After all, it's only a piece of dead tissue.

- Only evil can come of it.

- Your health will be ruined if you persist in this madness.

[...]