Let me see. What are my other shortcomings? - Arthur Conan Doyle

"It's a very cheery thing to come into London by any of these lines which run high and allow you to look down upon the houses like this."

I thought he was joking, for the view was sordid enough, but he soon explained himself.

"Look at those big, isolated clumps of buildings rising up above the slates, like brick islands in a lead-coloured sea."

"The board-schools."

"Light-houses, my boy! Beacons of the future! Capsules with hundreds of bright little seeds in each, out of which will spring the wiser, better England of the future."

Now, Watson,' said Holmes, (...) 'you'll come with me, won't you?'
'If I can be of use.'
'Oh, a trusty comrade is always of use. And a chronicler still more so. My room at The Cedars is a double-bedded one.'
(...)
'You have a grand gift of silence, Watson,' said he. 'It makes you quite invaluable as a companion. Pon my word, it is a great thing for me to have someone to talk to, for my own thoughts are not over-pleasant.

"I have the advantage of knowing your habits, my dear Watson," said he. "When your round is a short one you walk, and when it is a long one you use a hansom. As I perceive that your boots, although used, are by no means dirty, I cannot doubt that you are at present busy enough to justify the hansom."
"Excellent!" I cried.
"Elementary," said he. "It is one of those instances where the reasoner can produce an effect which seems remarkable to his neighbour, because the latter has missed the one little point which is the basis of the deduction. The same may be said, my dear fellow, for the effect of some of these little sketches of yours, which is entirely meretricious, depending as it does upon your retaining in your own hands some factors in the problem which are never imparted to the reader."