Depend upon it there comes a time when for every addition of knowledge you forget something that you knew before. It is of the highest importance, therefore, not to have useless facts elbowing out the useful ones.

Quote by Arthur Conan Doyle

Topics: Arthur Conan Doyle Quotes

There is nothing more unaesthetic than a policeman.

There is nothing more unaesthetic than a policeman.

A client is to me a mere unit, a factor in a problem.

A client is to me a mere unit, a factor in a problem.

I think that you know me well enough, Watson, to understand that I am by...

I think that you know me well enough, Watson, to understand that I am by...

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

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

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...

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,...

In an experience of women that extends over many nations and three separate continents, I...

In an experience of women that extends over many nations and three separate continents, I...

To the man who loves art for its own sake, it is frequently in its...

To the man who loves art for its own sake, it is frequently in its...

For strange effects and extraordinary combinations we must go to life itself, which is always...

For strange effects and extraordinary combinations we must go to life itself, which is always...

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.

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...

Any truth is better than indefinite doubt.

Any truth is better than indefinite doubt.

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.

Of all ghosts the ghosts of our old loves are the worst.

Of all ghosts the ghosts of our old loves are the worst.

Circumstantial evidence is occasionally very convincing, as when you find a trout in the milk,...

Circumstantial evidence is occasionally very convincing, as when you find a trout in the milk,...

It is an old maxim of mine that when you have excluded the impossible, whatever...

It is an old maxim of mine that when you have excluded the impossible, whatever...

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

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

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...

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...

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...