But this isn't science. It's more like black magic.

Henry Frankenstein (Colin Clive)

7 seconds sound clip from the Bride of Frankenstein movie soundboard.

You can hear this line at 00:24:08 in the Blu-ray version of the movie.

Quote context

[...]

- There. That will keep you quiet.

- My little ballerina is charming, but such a bore. She won't dance to anything but Mendelssohn's Spring Song, and it gets so monotonous.

- My next is very conventional, I'm afraid, but you can never tell how these things will turn out.

- It was an experiment with seaweed.

- Normal size has been my difficulty. You did achieve size. I need to work that out with you.

- But this isn't science. It's more like black magic.

- You think I'm mad. Perhaps I am.

- But listen, Henry Frankenstein. While you were digging in your graves, piecing together dead tissues, I, my dear pupil, went for my materials to the source of life.

- I grew my creatures, like cultures, grew them as nature does, from seed.

- But still, you did achieve results that I have missed.

[...]