The entire exchange in The Heiress between Catherine and her father after Morris stood her up. The best parts:
: Don't be kind to me; it doesn't become you.
: You have cheated me! You thought that any handsome, clever man would be as bored with me as you are were. It was not love that made you protect me—it was contempt!
Dr. Sloper:You have found a tongue at last, Catherine. It is only to say such terrible things to me.
:Yes. This is a field where you will not compare me to my mother.
Dr. Sloper: Promise me you are done with him!
Catherine:I won't promise.
Dr. Sloper: Then, I must alter my will.
You should... you should do it immediately!
Dr. Sloper:I don't want to do it. I don't want to disinherit my only child.
Catherine:You'd like to think of me sitting in dignity in this handsome house—rich, respected and unloved. But I may take your money and chase after Morris and squander it on him.
Dr. Sloper: I don't know what you would do, Catherine.
Catherine: That's right, father. You'll never know, will you?