“Pretend to be mad and talk a lot. Then — and this is the important bit — do nothing at all until you absolutely have to and then make sure everyone dies.”

“I am by turns a petulant adolescent and a mature man, a melancholy loner and a wit telling actors their trade. I cannot decide whether I'm a philosopher or a moping teenager, a poet or a murderer, a procrastinator or a man of action. I might be truly mad or sane pretending to be mad or even mad pretending to be sane.”

“You'll like it here; everyone is quite mad.”

“Thursday, you mean everything to me. Not just because you're cute, smart, funny and have a devastatingly good figure and boobs to die for, but that you do right for right's sake - it's what you are and what you do. Even if I never get my magnum opus published, I will still die secure in the knowledge that my time on this planet was well-spent - giving support, love and security to someone who actually makes a difference.”

“If you enjoyed laughing in the face of death, you might like to have a crack at High Saffron. One hundred merits, and all you have to do is take a look.' 'I understand there's a one hundred percent fatality rate?' 'True. But up until the moment of death there was a one hundred percent survival rate. Really, I shouldn't let anything as meaningless as statistics put you off.”

“Don't ever call me mad, Mycroft. I'm not mad. I'm just ... well, differently moraled, that's all.”

“Do I have to talk to insane people?""You're a librarian now. I'm afraid it's mandatory.”