Sherlock Holmes's classic quote:

I have a very special physique. I don't feel tired at all when I work, but if I am idle, it will make me exhausted.

I have a curious constitution. I never remember feeling tired by work, though idleness exhausts me completely.

2. I am very active and restless, and when I have nothing to do,

My mind rebels at stagnation.

3. I pursue mental excitement.

I crave for mental exaltation.

4. I cannot live without brainwork.

I cannot live without brainwork. What else is there to live for?

5. Even if

Women are never to be entirely trusted - not the best of them.

6. But love is an emotion Things are inconsistent with what I consider to be the most important thing of calm thinking. I will never get married so as not to cloud my judgment.

Love

is an emotional thing, and whatever is emotional is opposed to that

true cold reason which I place above all things. I should never marry

myself, least I bias my judgment.

7. The emotional qualities are antagonistic to clear reasoning.

The emotional qualities are antagonistic to clear reasoning.

8. Remove other factors, and what remains must be the fact.

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Eliminate all other factors, and the one which remains must be the truth.

9. Haven’t I told you many times that when you eliminate all the impossible factors? After you get out, no matter what is left - no matter how unbelievable it is - is that the truth?

How

often have I said to you that when you have eliminated the impossible,

whatever remains, however improbable, must be the truth?

10. Detective art is - or should be an exact science, and should be treated with the same calm and

Detection is, or ought to be, an exact science and should be treated in the same cold and unemotional manner.

11. I never do any

Exceptions. There are no exceptions to the law.

I never make exceptions. An exception disproves the rule.

12. Winwood Read has a good explanation of this issue. He argued that although Everyone is a mystery that is difficult to solve, but when human beings are brought together, there are laws. For example, you cannot predict a person's personality, but you can definitely know the personality of human beings. Personalities are different, but personality is different. is eternal, so do statisticians.

Winwood

Reade is good upon the subject. He remarks that, while the individual

man is an insoluble puzzle, in the aggregate he becomes a mathematicalcertainty. You can, for example, never foretell what any one man will

do, but you can say with precision what an average number will be up to.

Individuals vary, but percentages remain constant. So says the

statistician.

13. I never guess. Guessing is a very bad habit and it is harmful. To make logical reasoning.

I never guess. It is a shocking habit -- destructive to the logical faculty.