When you have eliminated the impossible, whatever remains, however improbable, must be the truth.

When you have eliminated the impossible, whatever remains, however improbable, must be the truth.

When you have eliminated the impossible, whatever remains, however improbable, must be the truth. (Four signatures)

If you precise destruction, in the public interest, I am willing to accept death.

If you can be guaranteed to be destroyed, then, for the benefit of society, even if and I am willing to die together with you. (The last case)

⒊What you do in this world is a matter of no consequence. The question is, what can you make people believe that you have done.

In this world It doesn't matter what you did. What matters is how you convince others of what you have done. (Research on Letters in Scarlet)

⒋I never make exceptions. An exception disproves the rule.

I never assume exceptions, exceptions will break the principle of investigation. (or I never make any exceptions, there are no exceptions to the law.) (Four signatures)

⒌It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.

It is a terrible mistake to make rash guesses (arguments) without facts as a reference. People who feel incorrect always use facts to fit their own inherent guesses (arguments), instead of deriving conclusions in the correct way and based on the obtained facts to see whether it can match the obtained facts. (A Scandal in Bohemia)

⒍One should always look for a possible alternative, and provide against it. It is the first rule of criminal investigation.

The first rule of criminal investigation It's: You have to look for every possible way to explain something and then try to see if you can try to disprove it. (Black Peter) ⒎I never guess. It is a shocking habit – destructive to the logical faculty."

I never guess, that is a bad habit that destroys thinking ability. (Four signatures)

⒏You see, but you do not observe. The distinction is clear.

You are seeing, but not observing. The difference between the two is obvious.

⒐In solving a problem of this sort, the grand thing is to be able to reason backward.

When solving this type of problem, the previously assumed viewpoint must be able to be established backwards and forwards.

(Study of Letters in Scarlet)

⒑There is nothing so unnatural as the commonplace.

There is nothing more unusual and worthy of study than ordinary things. (Identity Case)

⒒There is nothing more deceptive than an obvious fact.

There is nothing more deceptive than an obvious fact. (Boscombe Valley Mystery)

⒓It is a mistake to confound strangeness with mystery.

It is a mistake to confuse abnormal things with mystery. (Study of Letters in Scarlet)

⒔The more bizarre a thing is, the less mysterious it proves to be.

The more bizarre a thing is, the less mysterious it usually is. . (Red-haired Club)

Crime is common. Logic is rare. Therefore, it is upon the logic rather than upon the crime

that you should dwell.

Crime is common, logic is rare. Therefore, what you detail should be logic, not crime. (Tongshan Beech Case)

⒖Any truth is better than indefinite doubt.

Any fact that is indeed obtained is better than uncertain guess. (Yellow-faced Man)