‘My name is Sherlock Holmes. It is my business to know what other people don’t know.’ — The Adventure of the Blue Carbuncle
‘There is nothing like first-hand evidence.’ — A Study in Scarlet
“The world is full of obvious things which nobody by any chance ever observes.” — The Hound of the Baskervilles Chapter 3: “The Problem”
‘Eliminate all other factors, and the one which remains must be the truth.’ — The Sign of Four Chapter 1: “The Science of Deduction”