Brothers are a blessing for one thing. There is no possibility of any young lady getting unreasonably conceited if she be endowed with them.

Conceive a jelly-fish such as sails in our summer seas, bell-shaped and of enormous size - far larger, I should judge, than the dome of St. Paul's. It was of a light pink colour veined with a delicate green, but the whole huge fabric so tenuous that it was but a fairy outline against the dark blue sky. It pulsated with a delicate and regular rhythm. From it there depended two long drooping, green tentacles, which swayed slowly backwards and forwards. This gorgeous vision passed gently with noiseless dignity over my head, as light and fragile as a soap-bubble, and drifted upon its stately way.

Dogs don't make mistakes.

There is no scent so pleasant to my nostrils as that faint, subtle reek which comes from an ancient book.

He [Professor Moriarty] is the Napoleon of crime, Watson. He is the organizer of half that is evil and of nearly all that is undetected in this great city. He is a genius, a philosopher, an abstract thinker. He has a brain of the first order.

There is nothing like first-hand evidence.

Like all Holmes' reasoning, the thing seemed simplicity itself when it was once explained. Dr. Watson, speaking of Sherlock Holmes.