There's an east wind coming all the same, such a wind as never blew on England yet. It will be cold and bitter, Watson, and a good many of us may wither before its blast. But it's God's own wind none the less and a cleaner, better stronger land will lie in the sunshine when the storm has cleared.

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

There is danger for him who taketh the tiger cub, and danger also for whoso snatches a delusion from a woman.

"There are one or two elementary rules to be observed in the way of handling patients," he remarked, seating himself on the table and swinging his legs. "The most obvious is that you must never let them see that you want them. It should be pure condescension on your part seeing them at all; and the more difficulties you throw in the way of it, the more they think of it. Break your patients in early, and keep them well to heel."

I could not rest, Watson, I could not sit quiet in my chair, if I thought that such a man as Professor Moriarty were walking the streets of London unchallenged.

For the one and only time I caught a glimpse of a great heart as well as of a great brain.

So swift, silent and furtive were his movements like those of a trained bloodhound picking out a scent, that I could not but think what a terrible criminal he would have made had he turned his energy and sagacity against the law instead of exerting them in its defense. -Dr. Watson, The Sign of the Four