- Mycroft Holmes: [to Sherlock] Do you remember what Papa used to tell us when we were young? Eliminate the impossible and whatever remains, however improbable, must be the truth.
- Sherlock Holmes: That's father's magnifying glass.
- Mycroft Holmes: Yes.
- Sherlock Holmes: He gave it to you?
- Mycroft Holmes: Mm.
- Sherlock Holmes: How ironic.
- [first lines]
- Sherlock Holmes: No, this is the monastery's accounts dating to the early fifteenth century.
- Mycroft Holmes: Mm, precisely what I thought.
- Sherlock Holmes: But surely this has great political significance.
- Mycroft Holmes: A matter of particular delicacy.
- Inspector Hopkins: [At votes for women meeting] Votes for women indeed. Whatever next. Women politicians? Women police?
- Mycroft Holmes: God forbid.