What was Sherlock Holmes' deepest conviction? Well, it could well be the philosophical observation stated by the great detective, according to Dr. Watson's records, on four different occasions:* Eliminate all other factors, and the one which remains must be the truth. (The Sign of the Four)
* How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth? (The Sign of the Four)
* We must fall back upon the old axiom that when all other contingencies fail, whatever remains, however improbable, must be the truth. ("The Bruce-Partington Plans")
* When you have eliminated all which is impossible, then whatever remains, however improbable, must be the truth. ("The Blanched Soldier")
