Gregory: "Is there any other point to which you would wish to draw my attention? " Holmes: "To the curious incident of the dog in the night-time. " Gregory: "The dog did nothing ...

How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth?

I never guess. 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.

It has long been an axiom of mine that the little things are infinitely the most important.

It is a great thing to start life with a small number of really good books which are your very own.

It is my belief, Watson, founded upon my experience, that the lowest and vilest alleys in London do not present a more dreadful record of sin than does the smiling and beautiful ...

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

The case has, in some respects, been not entirely devoid of interest.

There was something awesome in the thought of the solitary mortal standing by the open window and summoning in from the gloom outside the spirits of the nether world.

Where there is no imagination there is no horror.