Watson: Sherlock, I think it's time.
Holmes: For what?! You-you know I'll investigate this anyway, whether I have Captain Gregson's blessing or not.
Watson: That is your choice, but right now, we are enabling you.
Holmes: If you are the partner that I invited you to be, the partner that I believe that you can be, then you will stop this line of thought immediately!
Watson: I am your partner, and you cannot keep going on like this! Now, what--
Holmes: You know, I almost stole a vial of opiates from a crime scene yesterday. You know why I didn't? Because of you. Because I knew how disappointed that you would be in me. And if I only had the words to describe how disappointed in you I am at the moment.
Watson: I don't expect you to understand right now, but I know what you need to do. Moriarty said she was smarter than you, that you needed to let her win. It is the only way this does not eat you alive. She was right. Let her win.