“- Dr. Hans Reinhardt: The risk is incidental compared to the possibility to posses the great truth of the unknown. There - long cherished laws of nature - simply do not apply. They vanish!
- Dr. Alex Durant: And - life?
- Dr. Hans Reinhardt: Life? Life forever!”
Maximilian Schell - Dr. Hans Reinhardt
Anthony Perkins - Dr. Alex Durant

“- Elsa von Frankenstein: What a dreadful storm and awful lightening.
- Baron Wolf von Frankenstein: It's magnificent. Nothing in nature is terrifying when one understands it.”
Josephine Hutchinson - Elsa von Frankenstein
Basil Rathbone - Baron Wolf von Frankenstein

- Mr. Gruffydd: You must have faith. And if you have, you will walk again, no matter what all the doctors say.
- Huw: But he said "Nature must take her course".
- Mr. Gruffydd: Nature is the hand-maiden of the Lord.
Walter Pidgeon - Mr. Gruffydd
Roddy McDowall - Huw

“Why, if there is anything in supply and demand, life is the cheapest thing in the world. There is only so much water, so much earth, so much air; but the life that is demanding to be born is limitless. Nature is a spendthrift.”

Edward G. Robinson - "Wolf" Larsen

“- Thomas Colpeper, JP: I was concentrating on who was coming up the hill to disturb me.
- Alison Smith: Disturb you? At what?
- Thomas Colpeper, JP: Breathing the air, smelling the earth, watching the clouds.”
Eric Portman - Thomas Colpeper, JP
Sheila Sim - Alison Smith