Sherlock Holmes: And now, Professor Moriarity, what can I do for you?
Professor Moriarty: Everything that I have to say to you has already crossed your mind.
Sherlock Holmes: And my answer has no doubt crossed yours.
Professor Moriarty: That's final?
Sherlock Holmes: What do you think?

Sherlock Holmes: I smell the faint sweet odor of blackmail!

Lydia Marlowe: I was right, Mr Holmes, you are a difficult subject.
Sherlock Holmes: Thank you.

Inspector Gregson of Scotland Yard: What are you looking at, Mr. Holmes?
Sherlock Holmes: Looking at a very handsome woman, not born to the purple, but giving an excellent imitation.

Professor Moriarty: Holmes has one weakness, his insatiable curiosity. If you can rouse that, you can lead him anywhere.

Professor Moriarty: We've had many encounters in the past. You hope to place me on the gallows. I tell you I will never stand upon the gallows. But, if you are instrumental in any way in bringing about my destruction, you will not be alive to enjoy your satisfaction.
Sherlock Holmes: Then we shall walk together through the gates of Eternity hand in hand.
Professor Moriarty: What a charming picture that would make.
Sherlock Holmes: Yes, wouldn't it. I really think it might be worth it.