You were tricked by your own imagination, Mrs. Rand.

3 seconds sound clip from the I Walked with a Zombie movie soundboard.

You can hear this line at 01:00:10.560 in the Blu-ray version of the movie.

Quote context

[...]

- On the way home, I said over and over again there were no such people, no strange drugs, there was no such thing as a zombie.

- You were right.

- I said it, and I made myself believe it.

- But when I got here, Jessica was raging with fever.

- She was raging with fever. A fever with a long Latin name and a bad reputation for its aftereffects... usually, some form of insanity.

- Dr. Maxwell is right, Mother.

- You were tricked by your own imagination, Mrs. Rand.

- But I am not an imaginative or fanciful woman, Doctor.

- As I understand it, in order to turn a person into a zombie whether by poison or hocus-pocus, you must first kill that person. Is that right?

- Yes.

- She was feverish. She was delirious. But I don't remember her dying, or even being in a state resembling death. No coma, nothing.

- I'm afraid you are an imaginative woman.

- Of course. Of course.

[...]