Well, we never know, do we? It only proves that nothing is certain in the world of...

— TV Commentator (Elliott Reid)

7 seconds sound clip from the Blackbeard's Ghost (1968) movie soundboard.

You can hear this line at 01:07:52 in the Blu-ray version of the movie.

Quote context

[...]

- Over at the high jump, Shockley of Godolphin.

- What was that?

- Unusual jumping style there.

- Hey, Coach, Shockley just cleared 6' 11 '!

- Our Shockley?

- And they're trying for seven feet!

- Shockley of Godolphin jumping... He clears the bar at seven feet.

- Great stuff, Coach. Where did you find him?

- Well, we never know, do we? It only proves that nothing is certain in the world of...

- Just a moment. Here's the final lap of the mile run coming around now.

- Where did you find him, Coach?

- Get out of there! Excuse me. You idiot! Get off the track!

- Hey, fella, come back here!

[...]