There is too much at stake to pull back. I'm on the brink of a great achievement. All this is just the beginning.

8 seconds sound clip from the The Black Hole (1979) movie soundboard.

You can hear this line at 00:35:50.700 in the Blu-ray version of the movie.

Quote context

[...]

- The first step to colonizing the galaxy.

- You'll be remembered as one of the greatest space scientists of all time.

- I have never doubted that.

- It's about time that people learn about their failures and my successes.

- You should come back with us and enjoy the glory of that success.

- I don't want to go back and I don't enjoy successes anymore.

- There is too much at stake to pull back. I'm on the brink of a great achievement. All this is just the beginning.

- The beginning? Of what?

- You will know in due time.

- Doctor, could we have a demonstration of this incredible new power source?

- Come with me and I'll show you everything. I call it Cygnium, after my ship.

(constant thrumming)

[...]