It is a capital mistake to theorize before one has data.

Quote by Arthur Conan Doyle

Topics: Arthur Conan Doyle Quotes

From a drop of water a logician could infer the possibility of an Atlantic or...

From a drop of water a logician could infer the possibility of an Atlantic or...

Any truth is better than indefinite doubt.

Any truth is better than indefinite doubt.

I have frequently gained my first real insight into the character of parents by studying...

I have frequently gained my first real insight into the character of parents by studying...

There is nothing more unaesthetic than a policeman.

There is nothing more unaesthetic than a policeman.

Sir Walter, with his 61 years of life, although he never wrote a novel until...

Sir Walter, with his 61 years of life, although he never wrote a novel until...

We can't command our love, but we can our actions.

We can't command our love, but we can our actions.

Violence does, in truth, recoil upon the violent, and the schemer falls into the pit...

Violence does, in truth, recoil upon the violent, and the schemer falls into the pit...

Depend upon it there comes a time when for every addition of knowledge you forget...

Depend upon it there comes a time when for every addition of knowledge you forget...

Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth.

Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth.

You will, I am sure, agree with me that... if page 534 only finds us...

You will, I am sure, agree with me that... if page 534 only finds us...

As a rule, said Holmes, the more bizarre a thing is the less mysterious it...

As a rule, said Holmes, the more bizarre a thing is the less mysterious it...

Where there is no imagination there is no horror.

Where there is no imagination there is no horror.

A trusty comrade is always of use; and a chronicler still more so.

A trusty comrade is always of use; and a chronicler still more so.

His ignorance was as remarkable as his knowledge.

His ignorance was as remarkable as his knowledge.

As Cuvier could correctly describe a whole animal by the contemplation of a single bone,...

As Cuvier could correctly describe a whole animal by the contemplation of a single bone,...

When a doctor does go wrong he is the first of criminals. He has nerve...

When a doctor does go wrong he is the first of criminals. He has nerve...

London, that great cesspool into which all the loungers and idlers of the Empire are...

London, that great cesspool into which all the loungers and idlers of the Empire are...

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

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

Nothing clears up a case so much as stating it to another person.

Nothing clears up a case so much as stating it to another person.

The ideal reasoner, he remarked, would, when he had once been shown a single fact...

The ideal reasoner, he remarked, would, when he had once been shown a single fact...