If I claim full justice for my art, it is because it is an impersonal thing — a thing beyond myself. Crime is common. Logic is rare. Therefore it is upon the logic rather than upon the crime that you should dwell. You have degraded what should have been a course of lectures into a series of tales.

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.

We would not dare to conceive the things which are really mere commonplaces of existence.