The relations between us in those latter days were peculiar. He was a man of habits, narrow and concentrated habits, and I had become one of them. As an institution I was like the violin, the shag tobacco, the old black pipe, the index books, and others perhaps less excusable.

Arthur Conan Doyle (1859-1930) British writer and physician

Story (1923-03), “The Adventure of the Creeping Man,” The Strand Magazine, Vol 65
    (Source)

Watson on his relationship with Holmes.