Watson, to catch a thief in London's fog, one must adapt to the winding streets, not fight them.
Watson, disguise yourself and mingle in the taverns; the best clues often come from the common crowd.
Watson, discard your pet theories. A detective must follow the facts, not his own vanity.
Watson, align your observations with proven logic, just as a navigator trusts his chronometer.
Watson, greed for quick fame blinds the eye. Slow your pace and examine the evidence coolly.
Watson, we do not work for praise, but to solve the case. Let the truth be your master.
Watson, once the chemical reaction begins, you must monitor it to the very end without distraction.