Three, the crucifix. Symbolizing the power of good over evil. The power of the crucifix in these cases...

Abraham Van Helsing (Peter Cushing)

12 seconds sound clip from the Horror of Dracula (1958) movie soundboard.

You can hear this line at 00:35:14.083 in the DVD version of the movie.

Quote context

[...]

- Jonathan will be home soon, I know it. Then I'll get better, you'll see. I won't be a trouble to Doctor Seward or any of you.

- Lucy, you're no trouble to anyone. Now rest, get some sleep. You've got to get some colour back into those cheeks.

- Good night, Lucy. Good night, Mina. Good night, Arthur.

- Sleep well.

- I'll try.

- Research on vampires. Certain basic facts established. One, light. The vampire allergic to light. Never ventures forth in the daytime. Sunlight, fatal. Repeat, fatal. Would destroy them. Two, garlic. Vampires repelled by odor of garlic.

- Memo. Check final arrangements with Harker before he leaves for Klausenburg.

- Three, the crucifix. Symbolizing the power of good over evil. The power of the crucifix in these cases...

- Come in.

- You rang, sir?

- Oh, yes.

- I want this letter delivered first thing in the morning.

- Will you see to that?

- Yes.

- Thank you.

- Thank you, sir.

- Anything the matter? What is it?

- Well, sir, to tell you the truth, when I was outside, I thought I heard you talking to someone.

- Of course you did. I was talking to myself.

[...]