Alexandria Lindsey Davis
  (Upon breaking down a pair of doors)
Falco: They made a good job of it!
Paslous: I heard a natural science student was fetched.
   They tend to be large health young men.
Falco: The outdoor life?
Paslous: Few lectures, so most spend their spare time out at
   the Gymnasium. On field trips, they build up their legs
   running away from rhinocerouses.

  (On discussing the death of the Librarian)
Aulus: No handy suicide notes? No hastily scrawled declaration of
"Chi did it!" Written in blood perhaps?
Falco: Chi?
Aulus: Chi the unknown quantity. Chi marks the spot.