From a drop of water a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other.

I felt Holmes's hand steal into mine and give me a reassuring shake. - Watson

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

There is nothing more stimulating than a case where everything goes against you.

The less experienced a doctor is, the higher are his notions of professional dignity . . .

I can never bring you to realize the importance of sleeves, the suggestiveness of thumb-nails, or the great issues that may hang from a boot-lace.

There seems to me to be absolutely no limit to the inanity and credulity of the human race. Homo Sapiens! Homo idioticus!