- Don't say that, Johnny. Roy was a great scientist.
- I would have never developed the serum without him.

7 seconds sound clip from the Robot Monster (1953) movie soundboard.

You can hear this line at 00:20:37.028 in the Blu-ray version of the movie.

Quote context

[...]

- Humans, listen to me. Due to an error in calculation, there are still a few of you left. You escaped destruction because I did not know you existed.

- Now I know you are watching. I see five of you who have not been destroyed.

- Show yourselves, and I promise you a painless death.

- Just the five of us left? But this is incredible!

- It means that Roy's gone too!

- I'll bet Alice is happy, the way they used to fight.

- Don't say that, Johnny. Roy was a great scientist.

- I would have never developed the serum without him.

- The trouble was he wouldn't admit I was good in my field.

- Anyone who could fix that view screen after what that blast did to it is better than good.

- Easy, easy.

- I'm sorry. Seems silly after all the terrible things that have happened to go to pieces over one miserable, egotistical, impossible guy!

[...]