It wasn't what you learned in class, it's how you learned.

Cavanaugh [to Kreizler]

If it was just envy, doctor, then why aren't you out there chopping off people's arms?

Jessie [to Kreizler]

Moore: I don't suppose you got what you wanted from Jesse?
Kreizler: Perhaps the truth -- that I don't know as much as I think I do.

Kreizler: Is the wine not satisfactory?
Sara: It's delicious.
Kreizler: You're not being truthful.
Sara: The truth is I prefer whiskey.
Kreizler [to waiter]: Bring the lady a whiskey.
Sara: Please make it two.

Kreizler: I find Commissioner Roosevelt capable of disagreeing with most people on most things.
Sara: You have similar temperments then.

You're not going to get away with this, Mr. Roosevelt.

Connor [to Roosevelt]

Chasing clues will mean he's always a step ahead of us. We must see what's behind the clues.

Kreizler [to Moore]

I'm afraid the good doctor's callous nature can sometimes upset those who care about him the most.

Moore [to Mary]

You'd best not let Roosevelt catch you drinking your lunch. He'll have your badge. Pious prick!

Byrnes [to Connor]

Moore: Up high, he can act with the confidence of the devil himself.
Marcus: Not the devil. God himself.

Marcus: Is there a room with a window, with access to the outside?
Hooker: This is a basement. You do know what a basement is?

I believe we all possess the raw material required to commit horrible acts. We just need the right, or wrong, combination of events to make the raw material combustible.

Kreizler [to Sara]

The Alienist Quotes

Moore: I'm not a reporter. I'm an illustrator.
Conner: Then that's two good reasons for you not to be going up there.

John: What can't possibly wait, Stevie?
Stevie: He said he needs you.