Harlan: You were my friend.
Sherlock: I was your employer, Harlan. And you were my consultant. One of many.
Harlan: I know that I am a little obsessed with what I do. That has always made it hard to make friends. And I used to feel pretty bad about that and then I meet you. And I thought to myself, hey, if it doesn't bother him, why should I let it bother me? I got a lot out of the work we did. A lot. But if someone like you, thinks I'm a loser, then ...