I consider that a man's brain originally is like a little empty attic, and you have to stock it with such furniture as you choose. [...] It is a mistake to think that that little room has elastic walls and can distend to any extent. [...] It is of the highest importance, therefore, not to have useless facts elbowing out the useful ones.

You would not call me a marrying man, Watson?" "No, indeed!" "You'll be interested to hear that I'm engaged." "My dear fellow! I congrat-" "To Milverton's housemaid." "My dear Holmes!" "I wanted information, Watson.

The ideal reasoner, he remarked, would, when he had once been shown a single fact in all its bearings, deduce from it not only all the chain of events which led up to it but also all the results which would follow from it.

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

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

Jealousy is a strange transformer of characters.

It is hardly fair to blame America for the state of San Francisco, for its population is cosmopolitan and its seaport attracts the floating vice of the Pacific; but be the cause what it may, there is much room for spiritual betterment.