“John does two things for him, admire him, hugely, Sherlock enjoys, well, we are all enjoy someone that admires us, Sherlock is kinda thrilled that someone came to him and said, ‘You are brilliant,’ so Sherlock immediately values his judgment, but John also criticizes him. He’s the only person who praises him and the only person who really says ‘That’s not good enough,’ and he’s trying to live up to what John thinks he is,”