His ignorance was as remarkable as his knowledge. Of contemporary literature, philosophy and politics he appeared to know next to nothing... My surprise reached a climax, however, when I found incidentally that he was ignorant of the Copernican Theory and of the composition of the Solar System.

Education never ends, Watson. It is a series of lessons, with the greatest for the last.

Do you know anything on earth which has not a dangerous side if it is mishandled and exaggerated?

Only that I insist upon your dining with us. It will be ready in half an hour. I have oysters and a brace of grouse, with something a little choice in white wines. Watson, you have never yet recognized my merits as a housekeeper. ~ Sherlock Holmes

Once or twice in my career I feel that I have done more real harm by my discovery of the criminal than ever he had done by his crime. I have learned caution now, and I had rather play tricks with the law of England than with my own conscience.

In shape they were like horrible toads, and moved in a succession of springs, but in size they were of an incredible bulk, larger than the largest elephant. We had never before seen them save at night, and indeed they are nocturnal animals save when disturbed in their lairs, as these had been. We now stood amazed at the sight, for their blotched and warty skins were of a curious fish-like iridescence, and the sunlight struck them with an ever-varying rainbow bloom as they moved.

Man, or at least criminal man, has lost all enterprise and originality. As to my own little practice, it seems to be degenerating into an agency for recovering lost lead pencils and giving advice to young ladies from boarding-schools.