Even so, you must destroy it.
1 seconds sound clip from Superman (1948) - Man Of Steel (Chapter 4).
You can hear this line at 00:03:40.270 in the Blu-ray version of the episode.
Quote context
[...]
- Did you put the cover on that... meteorite while I was unconscious?
- Yes.
- Would you mind taking it off again?
- It was the meteorite that knocked me out.
- How could it affect you and not me?
- There's only one reason. It must be a fragment of the planet Krypton.
- It is.
- That's what makes it the most important find in years.
- Even so, you must destroy it.
- Would you turn the lights out, please?
[...]