The Creature Walks Among Us (1956)
Dr. William Barton: What are you shooting at, you fool? I want him alive!
Dr. Thomas Morgan: ... because we all stand between the jungle and the stars, at a crossroads. I think we better decide what brings out the best in humankind, and what brings out the worst, because it's the stars or the jungle.
Dr. William Barton: We are changing a sea creature into a land creature.
Dr. Thomas Morgan: We only use what nature offered. The lungs were there, we didn't make them.
Dr. William Barton: You'll see Dr. Morgan.
Dr. Thomas Morgan: Just don't move too fast trying to change him.
Dr. William Barton: Are you afraid of unknown things?
Dr. Thomas Morgan: I'm only afraid of misusing what I do know.