“ Now is the dramatic moment of fate, Watson, when you hear a step upon the stair which is walking into your life, and you know not whether for good or ill. ”
 Arthur Conan Doyle, The Hound of the Baskervilles (1902). copy citation

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“«For the very simple reason that I see the dog himself on our very door-step, and there is the ring of its owner. Don't move, I beg you, Watson. He is a professional brother of yours, and your presence may be of assistance to me. Now is the dramatic moment of fate, Watson, when you hear a step upon the stair which is walking into your life, and you know not whether for good or ill. What does Dr. James Mortimer, the man of science, ask of Sherlock Holmes, the specialist in crime? Come in!»
The appearance of our visitor was a surprise to me, since I had expected a typical country practitioner.” source

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