What one man can invent, another can discover.

My name is Sherlock Holmes. It is my business to know what other people do not know.

Come, Watson, come!" he cried. The game is afoot.

So all life is a great chain, the nature of which is known whenever we are shown a link of it.

Circumstantial evidence is occasionally very convincing, as when you find a trout in the milk, to quote Thoreau's example.

On glancing over my notes of the seventy odd cases in which I have during the last eight years studied the methods of my friend Sherlock Holmes, I find many tragic, some comic, a large number merely strange, but none commonplace; for, working as he did rather for the love of his art than for the acquirement of wealth, he refused to associate himself with any investigation which did not tend towards the unusual, and even the fantastic.

To his eyes all seemed beautiful, but to me a tinge of melancholy lay upon the countryside, which bore so clearly the mark of the waning year, Yellow leaves carpeted the lanes and fluttered down upon us as we passed, The rattle of our wheels died away as we drove through drifts of rotting vegetation--sad gifts, as it seemed to me, for Nature to throw before the carriage of the returning heir of the Baskervilles.