He will need that advantage to survive.
5 seconds sound clip from the Superman (1978) movie soundboard.
You can hear this line at 00:15:29 in the Blu-ray version of the movie.
Quote context
[...]
- Nearly.
- If he remains here with us, he will die as surely as we will.
- But why Earth, Jor-El? They're primitives thousands of years behind us.
- He will need that advantage to survive.
- Their atmosphere will sustain him.
- No. His dense molecular structure will make him strong.
- He'll be fast. Virtually invulnerable.
[...]