SISTER. You'd be friends with your enemy?

DOCTOR. Oh ...!

SISTER. Will you let her bring someone into the house who'll
destroy you? If you only knew how I hate that man.

DOCTOR. I do. His last book's terrible; and shows a certain lack
of mental balance.

SISTER. They ought to shut him up.

DOCTOR. Many people have said so, but I don't think him bad enough.

SISTER. Because you're eccentric yourself, and live in daily
contact with a woman who's mad.

DOCTOR. I admit abnormality has always had a strong attraction for
me, and originality is at least not commonplace. (The syren of a
steamer is heard.) What was that?

SISTER. Your nerves are on edge. It's only the steamer. (Pause.)
Now, I implore you, go away!

DOCTOR. I ought to want to; but I'm held fast. (Pause.) From here I
can see his portrait in my study. The sunlight throws a shadow on
it that changes it completely. It makes him look like. ...
Horrible! You see what I mean?