Mediocrity knows nothing higher than itself, but talent instantly recognizes genius..

The world is full of obvious things which nobody by any chance ever observes..

The most dangerous condition for a man or a nation is when his intellectual side is more developed than his spiritual. Is that not exactly the condit….

What a lovely thing a rose is!.

It is, of course, a trifle, but there is nothing so important as trifles..

It 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..

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

You have been in Afghanistan I perceive..

The Times is a paper which is seldom found in any hands but those of the highly educated..

"I have seen those symptoms before," said Holmes, throwing his cigarette into the fire. "Oscillation upon the pavement always means an affaire de coe….

What the deuce is it to me?" he interrupted impatiently: "you say that we go round the sun. If we went round the moon it would not make a pennyworth ….

Life, it turns out, is infinitely more clever and adaptable than anyone had ever supposed..

Then away out in the woods I heard that kind of a sound that a ghost makes when it wants to tell about something that's on its mind and can't make it….

I get in the dumps at times, and don't open my mouth for days on end. You must not think I am sulky when I do that. Just let me alone, and I'll soon ….

When the impossible has been eliminated, all that remains no matter how improbable is possible..

...Holmes, who loathed every form of society with his whole Bohemian soul, remained in our lodgings in Baker Street, buried among his old books, and ….

The Adventure of the Noble Bachelor.

If in 100 years I am only known as the man who invented Sherlock Holmes then I will have considered my life a failure..

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

When the spirits are low, when the day appears dark, when work becomes monotonous, when hope hardly seems worth having, just mount a bicycle and go o….

It is a fool's plan to teach a man to be a cur in peace, and think that he will be a lion in war..