- Mary Reilly: He said you have an illness. What kind of an illness?
- Dr. Henry Jekyll: You might call it a fracture in my soul, something which left me with a taste for oblivion.
- Dr. Henry Jekyll: When we had our talk, you refused to say you hated your father.
- Mary Reilly: I don't.
- Dr. Henry Jekyll: Why not?
- Mary Reilly: He put a dark place in me and I can't forgive him for that, but it's part of me now, and how can I regret what I am? Though it often makes me sad.
- Dr. Henry Jekyll: Oh, well, sadness, yes, that can't helped. That comes in like the tide.
- Mr. Edward Hyde: I am sorry. I thought you were planning to stay a while. But perhaps my sense of smell deceives me.
- Dr. Henry Jekyll: It was the only way he could devise to set you free. It was inevitable from the moment I found how to achieve what I'd always wanted... To be the knife as well as the wound. Would you have ever forgiven me? I wanted the night... you see... and here it is...
- Mrs. Kent: [referring to her first glimpse of Hyde] He came out of the dark as if he was made of it.
- Dr. Henry Jekyll: Haven't you ever wished for a completely new life, Mary?
- Mary Reilly: No sir. What good would that do?
- Dr. Henry Jekyll: I mean, suppose you were able to do absolutely whatever you wanted, with no consequences and no regrets? Then what?
- Mary Reilly: I don't believe there's such a thing as actions without consequences.
- Mr. Edward Hyde: I feel differently with you. Why should that be? You still the rage.
- Mary Reilly: Where does it come from, Sir, this rage?
- Mr. Edward Hyde: How should I know? It comes in like the tide.
- [last lines]
- Dr. Henry Jekyll: I wanted the night, you see. A - and here it is.
- Mary Reilly: You said you didn't care what the world thought of you. Nor will I.
- [first lines]
- Dr. Henry Jekyll: I'm not going to bite you.
- Mary Reilly: I'm sorry, sir, you gave me a fright.
- Dr. Henry Jekyll: You're up very early.
- Mary Reilly: I'm generally up by five, sir, otherwise I get behind.